问题

The astronauts found that ______ the spaceship wentfurther and further into space, it became more and more difficult to controlits own movements.

A:不填 a
B:the a
C:The 不填
D:while

正确答案是：

同类题型

________ is it from your home to your school —- About 10minutes’ walk.

I’m trying to find yesterday’s newspaperHave you seen it?—I’m afraid that I ________ it awayI thought you had finished reading it

My parents want to go ____ on vacation.

Never the lions and tigers. They’re too dangerous. —Oh, I see. Thank you.

esident of the World Bank says he has a passionfor China, _______ he remembers starting as early as his childhood