—I’m sorry ,Mr.Wang. I _____ my homework at home .—That’s OK. But don’t forget ____ it to school tomorrow.

There is no doubt ________ the Diaoyu Island is part of China's territory.

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

I find it’s ___ hard ___ understand the English movies.

—How long did the trip from Rugao to Nanjing ______ you?— About three hours.