30、―Mr Smith, may I ask for a few days off? I am worn out.

--____. We are too busy.

   A. Don’t mention                                 B. Forget it   

   C. Don’t worry                                    D. That’s right

29、After retiring, he was recommended to ____ gardening as a hobby.

   A. take up        B. take on              C. take off         D. take away

28、 --I tried many times, but I still failed in the experiment.

--Don’t be discouraged. ____ and the problem will be settled.

   A. Making a little effort                           B. There being a little effort

   C. If you make a bit effort                      D. A bit more effort

27、--Hi, Lydia. Are you going to the concert on Friday?

--I’d like to. But there are so many problems ____.

   A. remaining to be settled                 B. remained settling

C. remaining to settle                        D. remained to be settled

26、So little ____ about science that the lecture was ____ my understanding.

   A. I know; over                                      B. knew I; beyond

   C. did I know; beyond                             D. did I know; over

25、Information has been put forward ____ more measures will be taken to solve the economic problems.

   A. while                  B. when                    C. as                     D. that

24、 Don’t put the waste on the ground, young man.

--Oh, I’m sorry. I ____ the dustbin there.

   A. didn’t see    B. hadn’t seen   C. can’t see           D. wasn’t seeing

23、--I rang you yesterday afternoon. A man answered, but I didn’t recognize the voice.

--Oh，it____ my uncle. He was in my room then.

   A. should have been                      B. should be

   C. must have been                         D. must be

22、The employees have not been paid ____ since the new manager took over this company last month.

   A. regularly             B. commonly               C. absolutely               D. ordinarily

21、Mrs. Green prefers a restaurant in a small town to ____ in so large a city as New York.

   A. this         B. one         C. it                     D. that