单项选择题These weapons add a new()to modern warfare.

A.flavor
B.factor
C.aspect
D.dimension


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1.单项选择题Every teacher ought to()kids to think about current issues.

A.incorporate
B.reinforce
C.challenge
D.transform

2.单项选择题The sale usually takes place outside the house, with the audience()on benches, chairs or boxes.

A.seated
B.seating
C.having seated
D.having been seated

3.单项选择题Beijing has reiterated that()will China use nuclear weapons first.

A.under no circumstances
B.under any circumstances
C.under every circumstances
D.under all circumstances

4.单项选择题Everything()if Albert hadn’t called the fire brigade.

A.had been destroyed
B.was destroyed
C.would be destroyed
D.would have been destroyed

5.单项选择题I don't mind()the decision as long as it is not too late.

A.you to delay making
B.your delaying making
C.your delaying to make
D.you delay to make

6.单项选择题Every morning, Allie wakes up and()her friend to the washroom.

A.companies
B.companions
C.accomplishes
D.accompanies

7.单项选择题He is()about his chances of winning a gold medal in the Olympics next year.

A.optimistic
B.optional
C.outstanding
D.obvious

8.单项选择题We agreed to accept()they thought was the best tourist guide.

A.whatever
B.whomever
C.whichever
D.whoever

9.单项选择题Wouldn't you rather your child()to bed early?

A.go
B.went
C.would go
D.goes

10.单项选择题Before they left the factory, all the cars were carefully tested for()

A.defects
B.flaws
C.faults
D.errors