a line after text?

Question

I am not aware of having a text with a colon and a line as a command. Is this possible? I am using the exam document class so I can use the \question command for the proper numbering.

example:

 \documentclass{exam}
 \begin{document}
 \begin{questions}
     \question{Good} \oolonline
     \question{happy} \colonline
     \question{sad} \colonline
     \question{nervous} \colonline
     \question{angry} \colonline
 \end{questions}

 \end{document}

and it will appear like this:

Answer 1

Using the exam class, you can have the following:

\documentclass{exam}
\usepackage{multicol}
\newcommand{\colonline}[1]{\question{#1\,:\rule{75pt}{0.4pt}}}
\begin{document}
\begin{multicols}{2}
 \begin{questions}
    \colonline{Good}
    \colonline{Happy}
    \colonline{Sad}
    \colonline{Nervous}
    \colonline{Good}
    \colonline{Happy}
    \colonline{Sad}
    \colonline{Nervous}
    \colonline{Good}
    \colonline{Happy}
    \colonline{Sad}
    \colonline{Nervous}
    \colonline{Good}
    \colonline{Happy}
    \colonline{Sad}
    \colonline{Nervous}
    \colonline{Good}
    \colonline{Happy}
    \colonline{Sad}
    \colonline{Nervous}
    \colonline{Good}
    \colonline{Happy}
    \colonline{Sad}
    \colonline{Nervous}
    \colonline{Good}
    \colonline{Happy}
    \colonline{Sad}
    \colonline{Nervous}
 \end{questions}
\end{multicols}
\end{document}

You can use the multicol package to split the questions in two columns if there are more than 30 questions. If you want it in a command like format, you can use:

\newcommand{\synquestions}[2][2]{%
\begin{multicols}{#1}
\begin{questions}
#2
\end{questions}
\end{multicols}
}

and implement it like this:

\synquestions{%
    \colonline{Good}
    \colonline{Happy}
    \colonline{Sad}
    \colonline{Nervous}
    }

Answer 2

Something simpler if you are not after the alignment of the \colonlines

\documentclass{exam}

\newcommand{\colonline}{: \makebox[0.75in]{\hrulefill}}

\begin{document}

\begin{questions}
     \question{Good} \colonline
     \question{happy} \colonline
     \question{sad} \colonline
     \question{nervous} \colonline
     \question{angry} \colonline
 \end{questions}

\end{document}

As suggested by morbusg, it looks nicer to have the line align at the end.

\documentclass[twocolumn]{exam}

\newcommand{\colonline}{: \hrulefill}

\begin{document}

\begin{questions}
     \question{Good} \colonline
     \question{happy} \colonline
     \question{sad} \colonline
     \question{nervous} \colonline
     \question{angry} \colonline
 \end{questions}

\end{document}

You can combine the answers here to come up with your own command. Generally, the definition of commands in LaTeX is given by:

\newcommand{<command>}{<definition>}

In our second definition of \colonline, \colonline is the command and what it does is to print : \hrulefill.

Sometimes, you can also see something like

\newcommand{\bt}[1]{\textbf{#1}} where 1 is the number of optional arguments. (I usually do \newcommand{\bt}[1]{\textbf{#1}\index{#1}} so that all bold text are put in the index.)

It would be a good place to start reading The Not So Short Introduction to LaTeX2e to learn some of these useful tricks.

Answer 3

Something like that?

\documentclass{exam}

\usepackage{tikz}
\newcommand{\colonline}[1][2cm]{: \tikz[baseline={([yshift=0.3ex]current bounding box.center)}]{\draw (0,0) -- (#1,0);}} 

\begin{document}

\begin{questions}
  \question{Good} \colonline
  \question{happy} \colonline
  \question{sad} \colonline
  \question{nervous} \colonline
  \question{angry} \colonline
\end{questions}

\end{document}

Edit : For the follow-up question you asked in comment, you can use an alternative questions environment defined with help of the multicol package.

\documentclass{exam}

\usepackage{tikz}
\newcommand{\colonline}[1][2cm]{: \tikz[baseline={([yshift=0.3ex]current bounding box.center)}]{\draw (0,0) -- (#1,0);}} 

\usepackage{multicol}

\newenvironment{manyquestions}{\begin{multicols}{2}\begin{questions}}{\end{questions}\end{multicols}}

\begin{document}

\begin{manyquestions}
  \question{Good} \colonline
  \question{happy} \colonline
  \question{sad} \colonline
  \question{nervous} \colonline
  \question{angry} \colonline
  \question{Good} \colonline
  \question{happy} \colonline
  \question{sad} \colonline
  \question{nervous} \colonline
  \question{angry} \colonline
  \question{Good} \colonline
  \question{happy} \colonline
  \question{sad} \colonline
  \question{nervous} \colonline
  \question{angry} \colonline
  \question{Good} \colonline
  \question{happy} \colonline
  \question{sad} \colonline
  \question{nervous} \colonline
  \question{angry} \colonline
  \question{Good} \colonline
  \question{happy} \colonline
  \question{sad} \colonline
  \question{nervous} \colonline
  \question{angry} \colonline
  \question{Good} \colonline
  \question{happy} \colonline
  \question{sad} \colonline
  \question{nervous} \colonline
  \question{angry} \colonline
  \question{Good} \colonline
  \question{happy} \colonline
  \question{sad} \colonline
  \question{nervous} \colonline
  \question{angry} \colonline
  \question{Good} \colonline
  \question{happy} \colonline
  \question{sad} \colonline
  \question{nervous} \colonline
  \question{angry} \colonline
  \question{Good} \colonline
  \question{happy} \colonline
  \question{sad} \colonline
  \question{nervous} \colonline
  \question{angry} \colonline
\end{manyquestions}

\end{document}