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34、A number of endangered animals ___ .

A. has died out      B. had died out      C. have died off     D. are dying out

33、Tom is ___ good a student ___ he is often praised by the teacher.

A. such; as            B. so; as                C. such; that          D. so; that

32、It is reported that many lakes and rivers are ___ now and we should think of any useful way to stop it.

A. polluted            B. being polluted    C. polluting         D. to polluted

31、

Standing too close to watch TV ___ your eyesight.

A. affects                     B. effect                C. affect                D. effects

30、___ we have a test.

A. Every a few days                            B. Each few days

C. Each a few days                             D. Every few days

29、___ is known to us all, he is an excellent student in our class.

A. Who                 B. That                  C. Which        D. As

28、Many difficulties have ___ as a result of changing over a new type of fuel.

A. risen                 B. arisen                C. raised                D. aroused

27、---How come a simple meal like this costs so much?

---We have ___ in your bill the cost of the cup you broke just now.

A. added               B. included            C. contained          D. charged

26、A war broke ___. What was worse, my car broke ___ on the way to escape.

A. out; into           B. off; up              C. down; away       D. out; down

25、When to go for the on-salary holiday ___ yet?

A. are not decided                              B. have not been decided

C. is not being decided                       D. has not been decided