问题
选择题
The police still haven’t found her, but they’re doing all they _____.
A.may
B.can
C.must
D.will
答案
答案:B
do all one can 意为“尽力”或“竭尽全力”。
The police still haven’t found her, but they’re doing all they _____.
A.may
B.can
C.must
D.will
答案:B
do all one can 意为“尽力”或“竭尽全力”。