1 . Not until he took off the sunglasses did I __________ (辨认出) him.

2 . He __________ (毕业) from Harvard in physics. Two years later he returned to his country.

3 . I think the agreement is a __________ (陷阱), so I have to think twice.

4 . Yesterday the boy was very upset, but finally his mother managed to c__________ him down.

5 . It is reported that there was an air crash in Cuba. Nobody on board s__________ it with all the leaders of their country.

6 . The black and the white have e__________ rights now in the U.S. and they can both be elected leaders of their country.

7 . The dog enjoyed himself _____________ (滚动) on the grass.

8 . It is my _____________ (信念) that God helps those who help themselves.

9 . The flashing light was a _____________ (信号) that a train was coming.

10 . If I have made any mistake, I’m ready to _____________ (道歉).