.Theproductionoftelevisioncomm

. The production of television commercials must be professional ________ they aim at promoting good service, or public education.

A．when

B．no matter

C．if

D．whether

登录免费查看答案和解析

相关试题

Not knowing what to do next, the girl _____ her parents for advice.

A．turned to

B．set up

C．escaped from

D．blew up

收藏答案/解析

Hearing the news, she _____________.

A．burst into tears

B．burst into crying

C．burst crying

D．burst of crying.

收藏答案/解析

Linda went to a party with a girl, _____ favorite hobby is collecting stamps.

A．who

B．whom

C．whose

D．which

收藏答案/解析

—Why do you put up these English cards on the wall?
—Only in this way _________the English words.

A．I can remember

B．can I remember

C．I remember

D．remember I

收藏答案/解析

The city ______ we visited last year is the one _____the famous writer was born.

A．where, which

B．which, where

C．in which, that

D．where, where

收藏答案/解析