1. 最好的方法是你提前预定。(ahead of time)

4. In such dry weather, the flowers will have to be watered if they ________ ________ _________ (be to survive).

3. It was the boy _________ __________ (而不是) his teachers that was to blame for what the boy had done.

2. Do you doubt _________ he will succeed in passing the test?

1. All of them stared at him intently, as though ___________ (try) to understand something.

6. Listen! The baby in the next room has been _____________ (scream) for an hour.

5. The boiler _____________ (explode) and many people were injured by the hot steam.

4. The conflict _____________ (spread) everywhere, into little villages, as well as into the cities.

3. How much a person can earn ___________ (depend) on his skill.

2. His back injury may __________ (prevent) him from playing in tomorrow’s game.