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
—Must I finish the book today?—Yes, you ________, but you ________ finish it now. Have a rest.
#75918
A
do; don’t have to
B
do; mustn’t
C
must; don’t have to
D
must; mustn’t
It was dark when Mary went out. I wonder how she ______ through the black lane by herself.
#63439
A
dared not to go
B
dare going
C
not dare go
D
dared to go
—What does the sign over there read?—No person ________smoke or carry a lighted cigarette ,cigar or pipe in this area.
#63550
A
will
B
may
C
shall
D
must
——Dad, must I finish my homework today?——No, you . You may do it tomorrow.
#75801
A
needn’t
B
mustn’t
C
don’t
D
won’t