问题
选择题
The work ____ be finished in such a short time .
A．wasn''t able to
B．couldn''t
C．ought
D．could
答案
答案：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。
搜题请搜索小程序“爱下问搜题”
The work ____ be finished in such a short time .
A．wasn''t able to
B．couldn''t
C．ought
D．could
答案：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。
