If he _______ to the teacher attentively in the past year, he _______the answer to the question now.
#86849
A
had listened; would know
B
listened; knew
C
listens; knew
D
has listened ;knows
推荐题目
 The officer insisted that the young girl_____ a thief and that she____ free at once.
#87539
A
was not; be set
B
should not be; be set
C
was not; was to be set
D
was not ; set
When I was young, I was told that I ______ play with matches
#90473
A
wouldn't
B
needn't
C
mustn't
D
daren't
The sleeping baby would be scared _______ a sudden loud noise. 
#86894
A
was there
B
there was
C
should there be
D
there should be
These achievements_______ without the contribution of Qian Xuesen, a key leader of the New China's nuclear, missile and so on.
#89859
A
would have been unthinkable
B
would not be unthinkable
C
would be unthinkable
D
would not have been unthinkable