There are a lot of computers in the lab,and they need professional to make sure they can be in a good state.
Ladies and gentlemen, please fasten your seat belts. The plane ______..
. It is so nice to hear from her. ______, we last met more thirty years ago.
----You haven’t done it well.----But I tried my best and did it ______ the way ______ I thought was the best.
Go back home now, Mary. Your parents ______ your safety.
Must I wait till you come back? No, you ______.