The cafe was not very romantic compared to the restaurant , because the
OPTIONS:
- cafe had a dour atmosphere.
- restaurant had a dour atmosphere.
cafe had a dour atmosphere.

Donald was showing Logan how to do difficult puzzles but
OPTIONS:
- Donald was struggling to teach them how.
- Logan was struggling to teach them how.
Donald was struggling to teach them how.

The fountain pen can not write smoothly on the paper because the
OPTIONS:
- paper is too sharp.
- fountain pen is too sharp.
fountain pen is too sharp.