What about yesterday’s homework, Amy?— I found ____ hard to finish all the exercises.

How soon will he come back from Beijing?—a week. [ ]

In ancient times, dogs were mainly ______helping people hunt( 打猎) .Now they are more useful-they can help the blinds, search for the bad eggs.

What _____you ______ at 10:00 last night?

If you want to save money, take the escalator_____ the second floor and turn right.[ ]