Is oxygen the only gas _______ helps fire burn?
#95032
A
that
B
/
C
which
D
it
推荐题目
I asked you ________ my dictionary—now I can’t find it.
#92714
A
not to move
B
to not move
C
not moving
D
did not move
Everyone had an application form in his hand, but no one knew which office ___.
#92269
A
to send it to
B
to send it
C
to be sent to
D
to have it sent
_______ on your study, and you will make greater progress．
#93243
A
Concentrating
B
If you concentrate
C
Concentrate
D
To concentrate
He said that only after he went abroad _______ what his motherland meant to him.
#93415
A
he realized
B
he had realized
C
had he realized
D
did he realize