问题

You got back so late and you didn’t even give me aproper reason _______ you hadn’t called me! I’m very unhappy with you.

A:when
B:why
C:how
D:which

正确答案是：

同类题型

Hurry up, ____________ you willmiss the early bus.

older generation used to advise usnot to build ____ in the air, but that’s not realistic at all

You will be late for school________ you don’t get upearly.

income,Ithinkmost peopledeserve more than what they get.— ______.

下列各句中，划线的成语使用恰当的一项是（）