题目内容

The means of learning English ________ very effective.

A. proves
B. are proved
C. were proved
D. have proved

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Your partner and friend ________ young and energetic.

A. look
B. looks
C. is looked
D. are looking

He goes to school on ________ every day.

A. foot
B. feet
C. the foot
D. the feet

The Smiths ________ here for ten years.

A. has lived
B. has been living
C. have been living
D. have been lived

除金银首饰外,生产销售应税消费品的单位都是消费税的纳税义务人,对么?

A. 对
B. 错