1 I did ------I could --------the child.
A what.... to calm B all ....calm C all what....to calm D what...calm
选a 问题是could是情态动词,应接do,对答案有疑问
2 Is this factory ------our friends visited yesterday?
A where B that C which D the one
答案d 此句是定语从句,对答案有疑惑
3 There's no air------water on the moon.
A that B and C but D or
答案d 对答案有疑问,应选B大伙看看是不是答案错了
4 Alice was waiting for the bus ------she noticed a thieft running out of a shop.
A when B while C after D as soon as
答案a 为什么不选b ,while是连接同时进行的句子
第二题没解释清楚
第一题我的那个疑问还是解释的不太清楚