问题补充:
--Who has opened the door? ---I think it be Lin Tao. He’s always the first to get here.
A. is able to
B. can
C. must
D. mustn’t
答案:
A. is able to
B. can
(答案→)C. must
D. mustn’t
解析:这是肯定的推测, 所以只能选用must
时间:2020-08-25 00:25:01
--Who has opened the door? ---I think it be Lin Tao. He’s always the first to get here.
A. is able to
B. can
C. must
D. mustn’t
A. is able to
B. can
(答案→)C. must
D. mustn’t
解析:这是肯定的推测, 所以只能选用must