It was not until he saw his mom _________.

Ittook_____buildingsuppliestoconstruct these energy-saving housesIt took brains, too[ ]

Why didn’t you go to Betty’s birthday party Had____ ever told you that or something else

下列各组句子中加点的字意思相同的一组是（ ）

It’s so wet this morning. It __________ have rained last night.[ ]