In order to ______ a good knowledge of English, he gave up his job and went to study in an English school.[ ]

What are you reading about—It’s about the one-child policy. It says that the policy has_____ controlling the population in China.

There I saw ten children________, two of whom were from 3

The world economy has improved _____ since the end of last year, but major problems and challenges are not fully solved

I like TV series How about you — _____ I’d prefer entertainmentprograms