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’m going to do all I can ________the bad impression you have.
#95336
A
to remove
B
remove
C
to leave
D
leave
When________there, the postman found the door locked and then stopped ______the letter under it.
#95281
A
reaching;to stick
B
reached;to stick
C
reaching;sticking
D
reached;sticking
____ nice, the food should be made by adding more sugar. 
#98074
A
Tasting
B
Taste
C
Tasted
D
To taste