We believe ________ we can find out the wonder drugs to H7N9 bird flu.
#78781
A
when
B
whether
C
what
D
that
推荐题目
Someone is ringing the doorbell. Let’s see _______.
#79228
A
who is he
B
who he is
C
who is it
D
who it is
I hear people talk about “Wisdom of the printed page”. They wonder       .
#36835
A
whether can the young afford to read books
B
where do the Chinese people like to read books
C
when the Chinese can realize the importance of reading
D
why do Chinese people spend lots of their time playing mobiles