When is his birthday?的his可以改成he嘛?为什么?我要考试,要今天内知道答案.

When is his birthday?的his可以改成he嘛?为什么?我要考试,要今天内知道答案. What is his birthday要改成同义句：When ____he____ His birthday is in October 为什么开头要用His 是What is his birthday还是When is his birthday? when is his birthday? 句子开头为什么不用what? when does he have his birthday( ) When is his birthday改为同意句 He is showing his birthday card ＿＿ his par He always______on his birthday. is his birthday when mother is 连词成句 His birthday is on . His birthday is( )July