____ important to learn English well.
#47023
A
That’s
B
It’s
C
It has
D
That has
推荐题目
It was _______ back home after the experiment.
#85056
A
not until midnight did he go
B
until midnight that he didn’t go
C
not until midnight that he went
D
until midnight when he didn’t go
I must find out why____so many students made the same mistake. 
#84856
A
is it that
B
was it which
C
it is what
D
it was that
_____ smoking, he would not have got cancer in the lung.
#85381
A
Was he given up
B
Had he given up
C
Did he give
D
If he gave up