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

Feed plants and they grow; （ ） them and they suffer.

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

This travel agency （ ） ＄360 for a single adult with a child under 12 for a round trip to the Great Valley.

He learned how to use sign language to _____ with deaf customers.

Dinner will be ready _____. Let’s go and wash our hands.

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

The chemical factory was pulled down _____protecting the environment.

In his opinion, success in life mainly （ ） on how we get along with other people.

Today Bob was late again for class because he overslept(睡过头), but he （ ） an excuse of being ill.

He had his book ______ at his own expense.

Without his wartime experience, Hemingway _____ his famous novel A Farewell to Arms.