题目内容
-You ________leave your post.It’s your turn.
-Why ________ you be on duty?
[ ]
A.shall; should not
B.shall not; should
C.should not; shall
D.shall not; should not
答案:D
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题目内容
-You ________leave your post.It’s your turn.
-Why ________ you be on duty?
A.shall; should not
B.shall not; should
C.should not; shall
D.shall not; should not