Malaysia Airlines Flight 370 ___________ course and turned back toward Kuala Lumpur -- but there were no indications from the pilot that he was doing so.
#86442
A
must have changed
B
could have changed
C
might have changed
D
should have changed.
推荐题目
The officer commanded that the supplies of food and clothes ______ to the flooded area.
#86801
A
should send
B
be sent
C
were sent
D
would send
If I had taken part in the 400-meter relay race in the sports-meet, our class _____ the race．I’m _____ weight this year．
#87919
A
might not have won; gaining
B
Would not have beaten; putting on
C
can not have defeated; losing
D
must not have achieved; acquiring
Mr. Smith insisted that his book _______within three days.
#86766
A
returned
B
would be returned
C
should return
D
be returned
—Do you know where David is? I couldn’t find him anywhere.—Well. He _________have gone far—his coat’s still here.
#89252
A
shouldn’t
B
mustn’t
C
can’t
D
wouldn’t