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
Take care not to get your shoes ______ in mud.
#96603
A
wet or covered
B
to be wet or covered
C
to be wet or covered
D
wet or be covered
Not only ______  polluted but ______ crowded. 
#98049
A
was the city; were the streets
B
the city was; were the streets
C
was the city; the streets were
D
the city was; the streets were
I’ve worked with children before, so I know what ____ in my new job.
#95623
A
expected
B
to expect
C
to be expecting
D
expects
Fortunately, the illness is fully treatable if _____ within ten days. 
#96907
A
being found
B
find
C
to be found
D
found