题目内容：

速求高一英语必修1转换句型2题
1.A:My father did the experiment in the lab yesterday evening.
B:_______ _________ my father ________ did the experiment in the lab yesterday evening.
2.A:The harvest happened to be bad that year .
B:It ________ ________ the harvest was bad that year.

优质解答

1.It is my father who did the experiment in the lab yesterday evening.
这个事强调句型,如果强调的是人连词用who,否则一般都用that；
2.It happened that the harvest was bad that year.
这个是固定句型,that后面的从句解释It的内容.