问题

Is this the reason ______at the meeting for hiscarelessness in his work

A:he explained
B:what heexplained
C:how heexplained
D:why heexplained

正确答案是：

同类题型

They practise on the playground. They have fun together.

Everything was perfect for the picnic _____ the weather[ ]

I have been told to donate blood by the health expert __________ I need some in the medical treatment one day.

Be _____we can’ t expect an absolute freedom of expression.

下列各句中加点词的解释不正确的一项是（）