13.　 Yesterday evening the police caught two __________ in the bank. ( thief )

12.　 Tony, our sons are seven now. They should dress _____________. ( they )

11.　 A tractor is ______ useful machine.　 ( a )

10.　 Please finish the ______________ exercises. ( 以下的 )

9.　　　 This morning he got up at 6:30 as __________. ( 往常 )

8.　　　 Lucy’s parents are __________________. ( 科学家 )

7.　　　 Give me two gallons _______ oil. ( 的 )

6.　　　 Here are our ____________________. ( 作文 )

5.　　　 Edison was a great i_____________.

4.　　　 Friday comes after T_____________.