I want to be a pilot when I______.
— 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
— I haven’t got a letter from Jenny for a long time . — Don’t worry ..
— Would you mind if I use your dictionary? —. Here’s my dictionary.
—. Jack, I will go for a picnic with my parents after the exam. —______.