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
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_______ I met him, I thought he was a serious man.
#92641
A
For the first time
B
The first time
C
It was the first time
D
By the first time
In my opinion, all Mr Tom ______ good to his students in his class at present. He is very strict in their study.
#94910
A
does does does
B
does do do
C
does does do
D
did do does
As is reported, it is 100 years______Qinghua University was founded.
#92461
A
when
B
before
C
after
D
since
Each of the students, hoping to pass the exam, _____the book.
#95027
A
buying
B
having bought
C
should buy
D
to buy