The French test

GARY:How was the exam, Richard?
RICHARD:Not too bad. I think I passed in English and Mathematics. The questions were very easy. How about you, Gary?
GARY:The English and Maths papers weren't easy enough for me. I hope I haven't failed.
RICHARD:I think I failed the French paper. I could answer sixteen of the questions. They were very easy. But I couldn't answer the rest. They were too difficult for me.
GARY:French tests are awful, aren't they?
RICHARD:I hate them. I'm sure I've got a low mark.
GARY:Oh, cheer up! Perhaps we didn't do too badly. The guy next to me wrote his name at the top of the paper.
RICHARD:Yes?
GARY:Then he sat there and looked at it for three hours! He didn't write a word!