完成句子
①The reason (why) she hasn’t come is _____________ she has to take her mother to a hospital.
她没来是因为她必须送母亲去医院。
②This is _____________ I want to say.
这就是我想说的。
③This is _____________ we overcome the difficulties.
这就是我们克服困难的方法。
④The question is _____________ we shall have the sports meeting.
问题是我们在哪里开运动会。
⑤It looked _____________ he had lost something.
看起来他好像丢失了什么东西。
⑥His trouble is _____________ he can get the help he needs.
他的麻烦是如何得到所需要的帮助。
⑦His car broke down on the way. That’s _____________ he is late.
他的车坏了，那就是他迟到的原因。