He may come here before five if he()(be)free.
He may come here before five if he()(be)free.
He may come here if he ______ (be) free tomorrow.
He may come here if he _(be) free.
He may come here if he _____(be) free.用适当形式填空,并说明理由
He mey come here if he _______( be )free
He may come here if he ______(not be) busy tomorrow
He will come here when he _____(be) free.
把直接引语变间接引语"you must come here before five."he said.
"you must come here before five,"he said 改为间接引语
He English for five years before he came here
Where did he live before he come here?
he will be free tomorrow.he will come to partty.合并为含有if从句的复合