人教版九年级下册英语课本Unit10 SectionA 4课后详细解答过程和答案

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SectionA 4a部分详细解答过程和答案
1、is important to
2、are supposed to/are expected to
3、is important to
4、are supposed to/are expected to
5、are expected to/are supposed to
SectionA 4b部分详细解答过程和答案
isn't/is not expected to know
to Iearn
to understand
are supposed to do
aren't/are not supposed to do