问题

He was about to leave the office for home _______someone knocked the door and asked for some help

A:until
B:while
C:as
D:when

正确答案是：

同类题型

下列文言句子的翻译，不正确的一项是（）

It’s absolutely unacceptable to sacrifice people’s life and health________ the economic developmentin any case.[ ]

I’m for thathe’ll stay here.

He improved his English a lot ______ listening to the radio.

I’m looking forward _________dinner withyou.