Is oxygen the only gas ________ helps fire burn?
#68685
A
that
B
/
C
what
D
it
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_______ I see the photo,1 will always think of Mr Li, who once was very strict with us.
#67595
A
Now that
B
Even though
C
The first time
D
Every time
He got up late and hurried to his office, ________ the breakfast untouched.
#68331
A
left
B
leaving
C
to leave
D
leave
Why not try your lick downtown, Bob? That’s __________ the best jobs are.
#72448
A
where
B
what
C
when
D
why
--Would you like to go to the park with me?--I’d like to you don’t want to go alone.
#41320
A
until
B
before
C
if
D
after
This machine, ______for many years, is still working perfectly.
#73761
A
after which I have looked
B
which I have looked after
C
that I have looked after
D
I have looked after