When        if he hadany idea what the novel was about, Jack kept silent. He       have read it very carefully. 
#93641
A
asking; needn't
B
asking; shouldn't
C
asked; can’t
D
asked; mustn’t
推荐题目
I still remember ____ to the Summer Palace and what I saw there.
#95996
A
taking
B
to take
C
to be taken
D
being taken
The 18-storeyed building, when _____, will shut out the sun _____ up the rooms in my house.
#98840
A
completed; lighted
B
completing; lighting
C
completing; lighted
D
completed; lighting