34.( )When I got up this morning, I saw Mary __________ the floor.
A. cleans B. cleaning C. to clean D. cleaned
33.( )The doctor told me __________ food with a lot of fat and oil.
A. don’t eat B. not eat C. not to eat. D. to eat
32.( )Don’t make any noise. The teachers ________ a rest in the room.
A. have B. are having C. had D. will have
31.( )Computers __________ in our work, so we work much faster now.
A. use B. used C. using D. are used
30.( )-Do you know _______________________?
-Next Tuesday.
A. when Mr. White will visit us B. when will Mr. White visit us
C. why Mr. White will visit us D. why will Mr. White visit us
29.( )-Aunt, Mary! Can Tom help me mend this car?
-Sorry, he __________to Shanghai. He won’t be back until next week.
A. goes B. is going C. went D. has gone