— Tom is a quick learner. But he is ______ at times.— That’s true. He is sometimes not calm enough.
In our city, _____ middle school students want to work as a teacher in the future.
I found _____ necessary to save energy and protect the environment.
________ beautiful these postcards are! Where did you get them?
We can’t do well in examinations we study hard in school time.
Her sonCoke, but now hemilk.