John is a bit nervous because he will give a speech _________

单选题John is a bit nervous because he will give a speech __________the board members this afternoon.

A．by
B．on
C．to
D．during

参考答案C

解析:【答案】C。解析：本题考查的是介词。横线后是演讲的对象，故选C。

单选题 Of the many radio stations in the city, FM 109 is considered to play the__________ listening music.

A．easy
B．easiest
C．more easily
D．most easily

单选题The new, expensive software was purchased to help keep better __________.of the clients we have here at our company.

A．records
B．states
C．points
D．marks

单选题Only after __________ requests by the tenants did the super-intendant do something about the broken intercoms in some of the apartments.

A．repeat
B．repeated
C．repeating
D．repetition