—There aren’t any toys in our suitcase．Where have you put them?—Oh, no．That old lady sitting next to us ______ have taken ours by mistake.
#63631
A
must
B
could
C
should
D
would
推荐题目
_______ you tell me how I_______ get to the No．168 Middle School?
#74566
A
Do；can
B
Can；could
C
Could；can
D
Could；could
—How did he get my telephone number?—You ________ it . You told him last week．
#63204
A
should have forgotten
B
may have forgotten
C
must have forgotten
D
could have forgotten
—Why are you late again?—Something happened to our friend Wang Fei. I _____ to help him.
#62788
A
did refuse
B
needn’t have refused
C
couldn’t well refuse
D
did not say no