He _____ have finished his work; otherwise, he wouldn’t be enjoying himself by the seaside.
#87469
A
should
B
must
C
need
D
can
推荐题目
. If only I ________ how to operate an electronic computer as you do. 
#89384
A
had known
B
would know
C
should know
D
knew
If my lawyer ______ here last Friday, he _____ me from telling the truth.
#87567
A
had been; would have prevented
B
had been; would prevent
C
were; would prevent
D
were; would have prevented