( )下午老师上课时，不可以说：
A. Hello, class. B. Good morning, class. C. Good afternoon, class.
相关试题
为下列句子选择正确的译文。(35分)
( )（1）This is my brother.
( )（2）Happy birthday！
( )（3）Here you are.
( )（4）How many plates？
( )（5）How old are you？
( )（6）I'm nine.
( )（7）This one，please.
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