Question

完成句子

It was only after he had spent several nights experimenting __________(他决定)to write to Dr Williams to find out if he was wasting his time．(decide)

Answer 1

答案：
解析：

答案：that he decided 　　解析：考查强调句型。本题是强调状语从句，由强调句型的结构“it was＋被强调部分＋that＋句子的其他部分”可知答案。