Helping others can make us very happy. A. feel B. feeling C. to feel
I have _____this book for two weeks. I have to return it now. A. borrowed B. kept C. had
Now most families in China have only one child _____ the one-child policy. A. because of B. instead of C. in order to
Mrs. Smith _____ in Beijing since 2008. A. livedB. has livedC. lives
— Where are Maria and Kangkang? —They _____ England. A. have been to B. have been in C. have gone to
China has ______largest population of the world . A. theB.a C. an