题目内容：

People all over the world are learning English. Some learn at school, others study by _____. A few learn English by listening ____ the radio.   Why do all these people want to learn English? It's difficult ____ this question. Many children learn English at school because it is one of their subjects. Some people learn English because ______useful for their work.  Many students often learn English for their______ education because _____ college some of the books they will use are written _____ English. It is not _____ to learn a foreign language. But there is _____ difficult in the world if you _____ your heart into it.

1.A. himself      B. themselves      C. ourselves

2.A. of         B. with            C. to

3.A. answer      B. to answer      C. answered

4.A. it's         B. its            C. they're

5.A. lower      B. further        C. shorter

6.A. near       B. at            C. on

7.A. in         B. with            C. on

8.A. easy       B. difficult       C. busy

9.A. something   B. anything        C. nothing

10.A.keep       B. put             C. take