(2014·北京四中3月模考)It is well known that knowledge is________treasure house，but practice is________key to it.
#99126
A
a；the
B
the；the
C
a；/
D
/；the
推荐题目
---Bad luck! I ________ the sidewalk when an Audi cut in and knocked me down.---You can never be too careful!
#101153
A
crossed
B
have crossed
C
was crossing
D
had been crossing
Laughter, along with an active sense of humor, ______ protect you against a heart attack, according to a recent study.
#100012
A
have helped
B
helped
C
help
D
helps
The teacher as well as a number of students____to attend the party yesterday.
#103693
A
were asked
B
was asked
C
were asking
D
was asking
----Have they finished the project?---- Yes. By the end of last month, they ______ it. Now they ______ on a new one.
#101490
A
had finished; are working
B
had finished; work
C
have finished; are working
D
have finished; work
. Dr. Smith, together with his wife, ______ visit Beijing this summer.
#103649
A
is going to
B
are going to
C
was going to
D
were going to