问题

The work ____ be finished in such a short time .
A:wasn''t able to
B:couldn''t
C:ought
D:could
B:couldn''t
C:ought
D:could
正确答案是:
同类题型
She always allows the children to voicetheir opinions_________sometimes their opinions are not sound
Becand won’t open until further________.
_________, my new friend and I were born on the same day and same year, so we have a lot in common.
It is generally believed that reading is______it is ascience [ ]