linguex and booklet

Question

I am encountering some issue with linguex while using the booklet package. Basically, when I want to list more than one sentence within the same number, I get a weird symbol - an underscore with a dot on top of it. The code and a picture to what I get follows.

\documentclass[12pt]{article}
\usepackage{qtree}
\usepackage[print]{booklet}
\setpdftargetpages
\usepackage{linguex}
\renewcommand{\firstrefdash}{}
\def\exr{\setcounter{ExNo}{0}\ex}

\usepackage{tipa} 

\usepackage{lipsum}

\usepackage[autostyle]{csquotes}

\usepackage[
backend=biber,
style=authoryear,
sortlocale=de_DE,
natbib=true,
url=false, 
doi=true,
eprint=false
      ]{biblatex}
\addbibresource{booklet_biblio.bib}

\begin{document}

\begin{refsection}
\begin{center}
\textsc{Tile2}
\end{center}

\lipsum[2] 

\ex. \ag. Gianni arriv{\` o} due ore fa \\
John arrived two hours does \\
'John arrived two hours ago.'
\bg. Gianni arriva due ore prima  \\
John arrives two hours before. \\
'John arrives two hours ealier.'

\end{refsection}
\end{document}

For the screenshot: click

I'm getting crazy in trying to figure out how to fix this. Any help or suggestion is very much appreciated. Thank you in advance!

Answer 1

If you had tried to simplify the example, you would have noted that booklet is completely irrelevant to the matter. Actually, a minimal example that reproduces the issue is

\documentclass[12pt]{article}
\usepackage{linguex}
\usepackage{tipa}

\begin{document}

\ex. \ag. Gianni arriv\`{o} due ore fa \\
John arrived two hours does \\
'John arrived two hours ago.'
\bg. Gianni arriva due ore prima  \\
John arrives two hours before. \\
'John arrives two hours earlier.'

\end{document}

Just reverse the calling order between tipa and linguex:

\documentclass[12pt]{article}
\usepackage{tipa}
\usepackage{linguex}

\begin{document}

\ex. \ag. Gianni arriv\`{o} due ore fa \\
John arrived two hours does \\
'John arrived two hours ago.'
\bg. Gianni arriva due ore prima  \\
John arrives two hours before. \\
'John arrives two hours earlier.'

\end{document}

I fixed a couple of typos. I didn't fix the nonsensical translation of “fa” into “does”. You should.