1.The reason I plan to go is ____________if I don't.
A.because she will be unhappy
B.what she will be unhappy
C.that she will be unhappy that she will be unhappy
D.for she will be unhappy
2.—Thank you for your invitation.
A.It doesn’t matter
B. It’s a pleasure.
C.It’s a small thing.
D. I’ll appreciate it.
3. A: Must we finish the work right now?
B: No, you _______. You can do it tomorrow.
4.If you want to know his telephone number, you may ________ the telephone directory.
C.refer torefer to
5.Once environmental damage ____, it takes many years for the system to recover.
A.is to do
6.He sometimes employs students to ___________ samples of their products.
7.____________the English examination I would have gone to the concert last Saturday.
A.In spite of
C.But forBut for
8.All things _________, the planned trip will have to be called off.
9.We worked hard and completed the task ____.
A.in the time
B.on the time
C.ahead of time
10.The hotel manager, ____________ I complained about the service, apologized to me sincerely.
11.________ we are allowed ________ , we can’t drink any beer.
A.As long as; to do
C.Unless; toUnless; to
D.On condition that; doing so
12.There is _________in today's newspaper.
13.The music was so loud. That's ____________he left the party so early.
14.The hotel can _____________ 500 guests.
15.It was an invention which laid the ____________ of modern radio technology.
16.The news____________ to the Great Wall during the summer holidays made us very happy.
A.what we would go
B.how we would go
C.that we would gothat we would go
D.where we would go
17.His _____________ on this matter is unexpected.
18.When her husband died, she received $200,000 in ____________.
19.Is this ________ we met each other two years ago
B.place in which
20.—Could you finish the task in two days?
— _______．I have something else to do these days．
A.I could not
B.Yes．I think so
C.I'm afraid so
D.I'm afraid not