He        the job well, but he    so careless.
#89972
A
had done; had been
B
could do; was
C
could have done; was
D
hadn’t done; had been
推荐题目
________ stop advertising, prices would be greatly reduced.
#89209
A
Were they to
B
Could they
C
If they
D
Would they
The general ordered that the thief____. 
#89916
A
be punished
B
would punish
C
would be punished
D
should punish
He is an hour late by now.He         last night.
#87873
A
must stay up
B
should stay up
C
should have stayed up
D
must have stayed up