need 做情態(tài)動詞時用于否定句和疑問句
做肯定句時用need to do
C如果改成 need cleaning 或need to be cleaned
Must we clean the classroom now?No,you needn't.It ______ after school.
Must we clean the classroom now?No,you needn't.It ______ after school.
A.may clean B.must clean C.need be cleaned D.can be cleaned
[正確答案是D,為什么不選C]
A.may clean B.must clean C.need be cleaned D.can be cleaned
[正確答案是D,為什么不選C]
英語人氣：215 ℃時間：2019-12-13 02:26:28
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