问题补充:
According to the air traffic rules, you switch off your mobile phone before boarding.
A. may
B. can
C. would
D. should
答案:
A. may
B. can
C. would
(答案→)D. should
解析:should此处表示根据交通法规应尽的责任和义务。
时间:2022-01-31 17:06:49
According to the air traffic rules, you switch off your mobile phone before boarding.
A. may
B. can
C. would
D. should
A. may
B. can
C. would
(答案→)D. should
解析:should此处表示根据交通法规应尽的责任和义务。
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