4.　　　 The dogs ________ (吓)the thief away.

3.　　　 The boy _______ (打中) the other boy and was naturally punished by the headmaster.

2.　　　 The party was _________ (主办)by Mrs. Smith.

1.　　　 The ground __________ (下沉)to the sea.

30.　 t_________ a piece of work done as part of one’s duties, especially hard or unpleasant.

Unit 4

29.　 n_________ the world of living things in the outdoors.

28.　 e__________ to give something that you have and get something different; trade

27.　 b__________ to get into a ship, or a plane, or any public vehicle.

26.　 s__________ a feeling of great sadness.

25.　 r________ to take, fill the place of