When we arrived at the airport, we were told our flight （ ）.

We like our English teacher because she often tells （ ） funny stories in class.

Our teachers always tell us to believe in （ ） we do and who we are if we want to succeed.

I don’t like to _____ a room with a stranger.

The whole class couldn’t help _____ when they saw the haircut of their new classmate.

Our daughter didn’t know what to （ ） when she first entered the university, as she hadn’t make up her mind about her future.

A new technique （ ）, the output as a whole increased by 20 percent.

Only when （ ） in the afternoon （ ） able to leave.

（ ） when she started complaining.

It was Thomas Edison that （ ） the electric lamp.

Our teachers always tell us to believe in （ ） we do and who we are if we want to succeed.

Our main concern is to _____ the living standard of the people.