單項(xiàng)選擇題

These weapons add a new（）to modern warfare.

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

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單項(xiàng)選擇題

Every teacher ought to（）kids to think about current issues.

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

單項(xiàng)選擇題

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

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