题目内容

使用游标卡尺和螺旋测微计测量物体前,应先确定测量仪器是否有()误差。

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Tom as well as two of his classmates________ invited to the party.

A. was
B. were
C. have been
D. are

The Olympic games ________ held every four years.

A. is
B. was
C. were
D. are

Three-fourths of the homework________ been finished today.

A. will
B. /
C. have
D. has

Jane is one of the best students in her class who _______ by their teacher.

A. are praised
B. is praised
C. praised
D. praises

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