目前有一部分同学还没有养成阅读的习惯,用什么方法把他们吸引到图书馆来,你的建议是？

Jack called the airline to ___________his flight to beijing this morning.

A. improve
B. believe
C. confirm
D. insure

Mike has already put forward his suggestion that a production plan______.

A. completed
B. should be completed
C. has completed
D. completes