I ________ work out the problem at first, but after my teacher showed me an example, I ________ get the answer easily.
#63120
A
couldn’t; was able to
B
can’t; could
C
wasn’t able to; could
D
was able to; was able to
推荐题目
-Is the man over there your English teacher ? --No, it ______ be him. He has gone to Canada to study further.
#76246
A
mustn't
B
can't
C
won't
D
needn't
(2013·高考天津卷)No one ________be more generous; he has a heart of gold.
#62472
A
could
B
must
C
dare
D
need
---When shall we meet your cousin at the station? ---His plane took off 2 hours ago, and it _________ arrive at 5pm.
#63473
A
could
B
should
C
must
D
can
---Did you ask Sophia for help? ----I ______ need to- I managed perfectly well on my own.
#63283
A
didn’t have to
B
don’t
C
didn’t
D
won’t