Some of the students have already learned enough English to _______a conversation with an English speaker.

Seeing the policeman, the thief was behaving __________ nothing had happened

1—There are so many ______over there. What’s happening? —Let’sgo to have a look.

en Lily fainted, we could have turned to your father for help.—–Yes, sending her to hospital _________ necessary.

Could I borrow your camera(照相机)—______, but please give it back by Saturday.