—Could I play computer games for a while, Mum? I’ve finished all my homework. —Oh, dear, if you _____.
#87248
A
can
B
dare
C
should
D
must
推荐题目
He ____the job well, but he_______so careless.
#89243
A
had done; had been
B
could do; was
C
could have done; was
D
hadn’t done; had been
That day they ________ there on foot, but they took a taxi. The place was only 50 meters away from the railway station. 
#88127
A
must have gone
B
shouldn’t have gone
C
could have gone
D
couldn’t have gone
The board considered it urgent that those files _____ right away.
#86957
A
be printed
B
will be printed
C
must be printed
D
had to be printed