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
It’s still early, you _____.
#90217
A
mustn’t hurry
B
wouldn’t hurry
C
may not hurry
D
don’t have to hurry
Online paper-checking requires that more attention _______.
#89641
A
be paid to spelling
B
to be paid to spelling
C
should pay to spelling
D
and spelling be paid to
(2013·高考陕西卷)My mom suggests that we________eat out for a change this weekend.
#86612
A
should
B
might
C
could
D
would