I decide to leave the company next month, where I _____ for exactly three years.

She didn’t want to go to Africa: probably （ ） the weather is too hot.

You needn’t introduce him to me. I’ve met him on several _____.

Plastics is a kind of （ ） which is widely used in industry.

Any student who_____his homework is unlikely to pass the examination.

Not until that day _____ the importance of good manners in a job interview.

I appreciate （ ） the opportunity to study abroad two years ago.

It is four years since John （ ） school.

A news report is usually very short, （ ） when it is about something very important.

When I go out in the daytime I use the bike _____ the car if I can.

—Are you （ ）? —No, I’m serious.

The government cannot operate effectively （ ） it is free from such interference.