According to the report, an Iranian nuclear scientist was killed and two people were injured when a bomb ______ to a car exploded in its capital city.

A.
attaching
B.
attached
C.
to be attached
D.
having attached

Lisa made a(n) _____ to help her husband with the problem, but failed in the end.

A.
promise
B.
response
C.
decision
D.
attempt

Mark was a student at this university from 2006 to 2011，________he studied very hard and was made Chairman of the Students’ Union.

A.
during which time
B.
for which time
C.
during whose time
D.
by that time

_______ on the American Civil War, the book attracted a large number of readers when it was published.

A.
Based
B.
Basing
C.
Having based
D.
Being based

--- Did they attend the opening ceremony?
---They _, but they were late and quit it.

A.
would
B.
would have
C.
didn't
D.
will have to

---Anna, you look so tired and wet all over!
---Well, you know, all morning I _______ my books to my new office on the third floor.

A.
am moving
B.
have moved
C.
had moved
D.
have been moving

I think I have great writing ______, but it’s a pity that I don’t have a chance to realize it.

A.
pollution
B.
possibility
C.
privilege
D.
potential

--What if I can’t finish my task today?
--______.You still have another week left.

A.
I’m sorry.
B.
It depends.
C.
Don’t mention it.
D.
take it easy

-- Did you get your car from the garage yesterday?
-- Yes, _______, I wouldn’t have driven to the party on time.

A.
otherwise
B.
besides
C.
however
D.
therefore

In the 1930s, the two countries were at __ war, and his father was fighting at _ front.

A.
the; 不填　　
B.
不填; the
C.
the; the
D.
不填;不填

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