1 . When I got to the airport, I realized I ______ my passport at home.

A．left

B．had left

C．had forgotten

2 . The student told me that he ________ the exam ________.

A．has had; yesterday	B．had; the day before yesterday
C．had had; the day before	D．had had; yesterday

3 . 发现弄丢了宠物狗，那个男孩立刻向过路人求助。
Finding that he had ________ his pet dog, the boy ________ asked the passers-by for help.

4 . 他说他自从18岁就成为一名士兵了。
He said he ________________ since he was 18.

5 . He told his mother that he ________ (run) out of money to buy new clothes.

6 . —I heard that Uncle Zhao ________ more than 20 countries since 2010.
—Yes, and he thinks it’s very wonderful.

A．had been in

B．had traveled to

C．traveled to

7 . After Frank __________ the dinner, he went for a walk in the garden with his family.

A．is eating

B．eats

C．will eat

D．had eaten

8 . By the time I got to school, I realized I ________ my homework at home.

A．left

B．had forgotten

C．had left

9 . He didn’t know who ________ (break) the window.

10 . Tom said that he ________ (keep) the book for two weeks.