Since nobody gave him any help, he have done the research on his own.
#86873
A
can
B
must
C
would
D
Need
推荐题目
—___John come here tonight?—I’m not sure, but he ______ stay at home.
#89534
A
May, might
B
Can, must
C
Must, might
D
Can, migh
I tried to call on you last week but your dog simply ____ not let me come through the gate.
#89192
A
could
B
would
C
might
D
should
Driving on the highway ______ be very dangerous, so you ______ be too careful.
#87841
A
should; ought to
B
could; should
C
might; mustn’t
D
can; can’t
— I ____ to your birthday party last Sunday.— Unfortunately, you were out on business.
#89993
A
had come
B
came
C
would come
D
would have come
. — ____ I know your name ? — Sorry , you ____ .
#89739
A
May ; mayn''t
B
May ; can''t
C
Must ; mustn''t
D
Need ; must