單項(xiàng)選擇題A chart showing all staff positions and responsibilities () prepared by the Vice President.

A.was
B.has
C.were
D.have


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A.be suffered
B.suffered
C.to suffer
D.suffering

2.單項(xiàng)選擇題The numbers in the key do not correspond () those in the lessons.

A.for
B.to
C.on
D.at

5.單項(xiàng)選擇題()in the labor market,he has enrolled in a computer course.

A.Be competitive
B.Being more competitive
C.Being competitive
D.To be more competitive