The astronauts found that ______ the spaceship went further and further into space, it became more and more difficult to control its own movements.
#32888
A
if
B
till
C
as
D
while
推荐题目
Is this the reason____ at the meeting for his carelessness in his work?
#32522
A
he explained
B
what he explained
C
how he explained
D
why he explained
She is so beautiful a girl ___ we all like.
#34160
A
that
B
which
C
as
D
what