The number of the trees in the world _____ getting smaller and smaller. [ ]A
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The number of the trees in the world _____ getting smaller and smaller. |
[ ] |
A. is B. are C. was D. were |
答案
A |
举一反三
China is one of the developing countries that _____ the third world. |
[ ] |
A. belong to B. belongs to C. is belonged to D. are belonged to |
The number of people invited _____ fifty, but a number of them _____ absent. |
[ ] |
A. were, was B. was, were C. were, was D. was, was |
As you can see, the number of cars on our roads ____ rising these days. |
[ ] |
A. was keeping B. keep C. keeps D. were keeping |
Two thirds of the earth _____ covered with water. |
[ ] |
A. are B. is C. were D. have been |
The number of people invited _____ fifty, but a number of them _____ absent for different reasons. |
[ ] |
A. were; was B. was; was C. was; were D. were; were |
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