Help me every body

1/ The children …………. to the zoo. (1.25)
A. were enjoyed to take
B. enjoyed being taken
C. were enjoyed to be taken
D. enjoyed taking

2/ Although ……. satisfied with the contract, the officials hesitatingly agreed to sign it. (1.15)
A. complete
B. completed
C. completely
D. completion

3/ I didnt know exactly how old he was, but he …..about 30 the first time we met. (1.1
A. should be
B. should have been
C. must be
D. must have been

4/ . It is necessary to be careful ……………your career. (1.21)
A. when choosing
B. when you will choose
C. when you have chosen
D. when you chose

5/ The threat of being dismissed do not worry me any more because I have started my own business.
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6/ The singer has given up performing live. (1.71)
A. The singer is accustomed to performing live.
B. The singers live performance has been cancelled.
C. The singer used to perform live.
D. The singers performance has always been live.

7/ The boy was not intelligent enough to have solved such complex problems alone. (1.72)
A. The complex problems couldnt be solved because the boy was so stupid.
B. The boy was not intelligent but he managed to solve such complex problems.
C. The boy, though quite intelligent, couldnt solve the complex problems.
D. The boy together with someone else solved the complex problems.
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8/ Farming / what / provide / living / nearly 50% / our population (1.76)
A. Farming is what provides a living for nearly 50 % of our population.
B. Farming is what is provided with a living for nearly 50 % of our population.
C. Farming is something what provides a living for nearly 50 % of our population.
D. Farming is what someone provides a living for nearly 50 % of our population.