It isn’t like a duck to water to learn a foreign language, so you must study hard.

The girl doesn’t eat much for breakfast．She ________ eats an egg．

Another cup of tea? That’s your third since lunch—-Yeah, well, I ____ all night preparing for my history examI can hardly keep my eyes open

Did you have any problems in London —Yes, I have trouble ______ Chinese food like noodles.

When ______ by the teachers, a student tends to studyharder than usual.