1 . 用所给短语的适当形式填空

take up；contribute to；in a mass；lead to；deal with；now and then；set out；call up；because of；think of

1. This song ________ memories of my children.
2. I like to go to the opera ________.
3. When he retired, he began to ________ painting.
4. ________ the heavy rain, we put off our sports meeting.
5. He was too lazy to clean his house so it was always ______.
6. Smoking can ________ lung cancer.
7. On receiving the assignment, we ________ to work at once.
8. I often ________ my old friend when I see the photo.
9. Hard work ________ success.
10. This book   ________ love and marriage.

2 . There is no point arguing about what ________ the accident. I’d rather you _________ the victims of it.

A．led to; focus on	B．led to; focused on
C．caused; focus on	D．caused to; focused to

3 . While studying, fix your mind on what is really important,or you will _____ remembering nothing.

A．end up	B．take up
C．lead to	D．stick to

4 . The roommate conflicts between college students led to little or no communication, depression and even to____ one student.

A．kill	B．killing
C．killed	D．being killed

5 . I’m so glad you’ve come here to ________ this matter in person.

A．lead to

B．see to

C．turn to

D．refer to

6 . It is global warming, rather than other factors, ________ the extreme weather.

A．that have led to	B．which has caused
C．which are causing	D．that has led to