题目内容
(请给出正确答案)
[主观题]
It is essential that you always bring matches, a lighter and a knife in your backpack and
don't take them out when you clean out your pack.
A.Y
B.N
C.NG
提问人:网友georgecxd
发布时间:2022-01-06
A.Y
B.N
C.NG
It is essential that you _______ on time.
A、be
B、are
C、were
D、being
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