【题目】He made a mistake, but he took action to change the situation________ it got worse.
A.until
B.unless
C.before
D.since

—_________.

A. That’s rightB. You are welcomeC. I’m sure

A. getB. reach inC. arrive inD. get to

【题目】— Why didn't you answer my telephone yesterday?
—Sorry. Ia bath at that time.
A.took
B.take
C.am taking
D.was taking

—It is about 1,000 __________.

A. dollarsB. kilometersC. litres

— . You must be careful.

A. That’s OKB. I hope not

C. I am happy to hear itD. Bad luck

【题目】—Where is Andy?
— He________ be in the library. He said he would borrow books in the morning.
A.must
B.mustn't
C.need
D.needn't

【题目】It is______ of you to rush into the teachers' office without knocking at the door.
A.friendly
B.strict
C.impolite
D.impossible

—Hurry up. There is time for a drink.

A. littleB. a littleC. fewD. a few

A. couldB. mayC. canD. Must