When he knocked at the door, my mother was busy ____ supper.
#94849
A
preparing for
B
in preparing
C
to prepare for
D
to prepare
推荐题目
Newton was sitting under an apple tree ______ an apple fell onto his head.
#92858
A
when
B
while
C
after
D
before
There are three times __________.
#93606
A
as many girls as boys
B
as many girl as boy
C
as many girls as boy
D
as many girl as boys
—Don't you think Jim was brave to go bungee jumping?—Personally，I thought he was ________ brave.
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A
more mad than
B
so mad as
C
mad more than
D
too mad as
Science and technology are developing ______ quickly that some new electronic products are out-of-date within several months.
#92298
A
very
B
so
C
such
D
too
Jack, I’m afraid I’ll turn to you．I think chemistry is _______ physics．
#93554
A
as a difficult subject as
B
a subject the same difficult as
C
as difficult a subject as
D
the same difficult subject as