题目内容
The work ____ be finished in such a short time .
| A.wasn''t able to | B.couldn''t | C.ought | D.could |
B
be able to 不接被动语态。表示过去“能够”,could 只能用于否定句,故 could 不正确。
练习册系列答案
相关题目
题目内容
| A.wasn''t able to | B.couldn''t | C.ought | D.could |