_____ finished his work, he had to stay at home on the weekend.

Mary didn’t say （ ） she would return, but I believe she’ll be back for dinner.

It was while she was sleeping in her bedroom_____a thief broke into the house.

By this time next week, the winners _____ their awards.

I have bought _____ useful reference books _____ I don’t know which one to start with.

I love thinking of new designs. It keeps my mind clear and active and fills my retired life with （ ）.

It’s too late to go out. _____， it’s going to rain.

Humble （ ） it may be, there is no place like home.

The chemical factory was pulled down _____protecting the environment.

The defense computers calculate way to （ ） the enemy missiles.

（ ） singer and （ ） dancer is also good at drawing.

Tom’s bedroom was in a （ ）, for books and papers were here and there.