The zoo keepers is worried because the number of visitors __ smaller and
题型：不详难度：来源：
The zoo keepers is worried because the number of visitors __ smaller
and smaller.| A．become | B．became | C．is becoming | D．have become |
|
答案
| C |
解析
| 考查主谓一致。the number of……的数目，谓语动词用单数形式。根据句意用现在进行时。句意：动物管理员担心游客的数量正在变得越来越少。 |
举一反三
The teacher commanded that the exercises _______ in an hour.
A. was finished B . were finished C should finish D. be finished |
What our teacher said ______ me. | A．surprised | B．surprise | C．is surprised | D．is surprising |
|
The shop assistant promised me that the material ____, and what she said ___ to be true .
would be dried easily ; was proved B. will be dried easily ; was proved
C. dried easily ; proved D. dried easy ; proved |
Recently quite a lot of exports _______ that another law on wildlife protection ________ as soon as possible .| A．demanded , must be passed | B．have demanded, be passed | | C．were demanding , was passed | D．demanded, being passed |
|
----I _________ the book for a whole hour .
---- No wonder you look so tired .| A．have read | B．have been reading | C．read | D．are reading |
|
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