Computers must be of great use to ________ doing the scientific research.
#16786
A
these
B
whoever
C
those
D
whomever
推荐题目
Everyone knows that _______ is dangerous to play with fire, but _______ is difficult is to prevent children from playing with fire.
#16314
A
it, it
B
what, what
C
it, what
D
what, it
--- Where was the park that the author described in his latest book? ---___ was near the zoo ___ we took many photos last month.
#16253
A
That, that
B
It, that
C
It, where
D
It, which
To save class time,our teacher has_______students do half of the exercise in class and complete the other half for our homework.
#16459
A
us
B
we
C
our
D
ours
——Your coffee smells great！——It’s from Mexico. Would you like ______?
#16878
A
it
B
some
C
this
D
little