问题

We’d better go downstairs right now for lunch—____ They serve food 24 hours a day

A:as soon as
B:while
C:when
D:once

正确答案是：

同类题型

Fred entered without knocking and,very out of breath, sank____ a chair[ ]

Ann’s brother can play _______ violin, but he doesn’t have _______ violin at home.

找出下列单词中划线部分发音不同于其他三个的词

, it is a wonderful place because younever know what it may have_______

It ________ to plant trees and grass on the hillside.—Yes. They help stop soil from being washed away.