—What a great cook your sister is! —Yeah! We ______ never have enough of her cookies．
#89016
A
may
B
must
C
should
D
can
推荐题目
---- There’s no light on. ---- They ________ be at home.
#87559
A
can’t
B
mustn’t
C
needn’t
D
oughtn’t to
It was Mr Zhang that helped us out of the trouble. Without his help, we ______ it so easily.
#87545
A
can’t manage
B
mustn’t have managed
C
couldn’t have managed
D
couldn’t manage