We （） free tomorrow afternoon. 【be】 我明天下午有空。

If weather （）, we’ll go for a picnic tomorrow. 【permit】 如果天气状况允许，我们明天会去郊游。

Don’t talk（）that.

A. as
B. at
C. like

（） aeroplanes in this company are Boeing planes.

A. Most of
B. Most
C. The most

This is one of the most important things （） all.

A. among
B. in
C. of

It was Dr. Rontgen who （） X-rays.

A. discovered
B. invented
C. made u

She’s going to （） that new dress.

A. try out
B. try on
C. try for

He took the other road to avoid （） her.

A. meeting
B. tomeet
C. meet

He is excited （） the good news.

A. with
B. for
C. about

The pilot turned engine （） and is ready to take off.

A. up
B. off
C. o