Zhangqiang is said ______ the experiment in the lab, but I can’t find him there. 
#92292
A
to have done
B
to do
C
to be doing
D
doing
推荐题目
_______ all these people have in common is ________ they have succeeded.
#93993
A
What; that
B
That; what
C
That; that
D
What; what
Her dog ran out of the yard           the old lady opened the gate .
#94137
A
moment
B
a moment
C
the moment
D
that moment
Let those in need________that we will go all out to help them.
#91949
A
to understand
B
understand
C
understanding
D
understood