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
--- ________ have you kept the book ? --- Since last Month. I ________ return it to the library today or I can’t borrow one next time.
#74561
A
How often; must
B
How long; have to
C
How soon; have to
D
When; must
— If you listen to me, you ______ take a good rest at once.— OK, I ______ do so.
#62849
A
should; must
B
shall; will
C
must; would
D
may; can
Mr.Bush is on time for everything.How ________ it be that he was late for the opening ceremony.
#62508
A
can
B
should
C
may
D
must
— Where’s Lucy ? — She ________ in the office. I saw her there just now.
#75664
A
can’t be
B
must be
C
can be
D
should be
I didn’t know Headmaster Weng was away for Beijing. I to his office yesterday.
#63308
A
mustn’t have gone
B
needn’t have gone
C
wouldn’t have gone
D
couldn’t have gone