1:将“They were here yesterday.”改成一般疑问句、问时间的疑问句和否定句.2:将“He must leave early”改成一般疑问句、问原因的疑问句和否定句.

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1:将“Theywerehereyesterday.”改成一般疑问句、问时间的疑问句和否定句.2:将“Hemustleaveearly”改成一般疑问句、问原因的疑问句和否定句.1:将“Theywere

1:将“They were here yesterday.”改成一般疑问句、问时间的疑问句和否定句.2:将“He must leave early”改成一般疑问句、问原因的疑问句和否定句.
1:将“They were here yesterday.”改成一般疑问句、问时间的疑问句和否定句.
2:将“He must leave early”改成一般疑问句、问原因的疑问句和否定句.

1:将“They were here yesterday.”改成一般疑问句、问时间的疑问句和否定句.2:将“He must leave early”改成一般疑问句、问原因的疑问句和否定句.
1.Were they here yesterday?
When were they here?
They weren't here yesterday.
2.Must he leave early?
Why must he leave early?
He needn't leave early.
其实很简单.一般疑问句就是be动词提前或情态动词提前
特殊疑问句是疑问词加一般疑问句
否定句就直接在be动词或情态动词后加not
must特殊要改成need