China has offered much help to Japan since it ______ by the earthquake and tsuna
题型：不详难度：来源：
China has offered much help to Japan since it ______ by the earthquake and tsunami（海啸）.| A．hits | B．is hit | C．was hit | D．will be hit |
|
答案
| C |
解析
| 大地震冲击日本是过去发生的事，从句主语是it为动作的承受者，故要用过去时的被动句，结构为was（主语为it）+过去分词，故选C。 |
举一反三
These books should to the library on time. | A．send | B．be returned | | C．give back | D．be got back |
|
Yuan Longping, a great person in China, _____as “father of hybrid rice”| A．is regarded | B．has regarded | C．is regarding | D．regards |
|
It is true that knowledge_____ rather than being taught. | A．learns | B．learned | C．is learned | D．was learned |
|
— Your classroom is really bright and clean.
— It after school every day.
A. is cleaned B. cleaned C. was cleaned |
Waste paper shouldn’t _____ everywhere. It’s our duty to keep our classroom clean.
A. be thrown B. throw C. is thrown |
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