________mothers can’t go to the meeting, because they have gone to New York on business.A. Alice and Lily’s B. Alice’s and Lily’s C. Alice’s and Lily
—How do you like China? —Great changes _______ since I _______ here 8 years ago. A. have taken place; came B. took place; have come C. took place; came
—Joan has never been to Beijing. What about Jack?—_______ A. So has he. B. Neither has he. C. Neither he has.
I don’t like bread. I won’t eat it______ I am very hungry. A. unless B. when C. because
—Hello! Can I speak to Chris? —Sorry, he isn’t in. He _______ Japan on business. A. has been to B. has gone C. has gone to
—_____ is the population of America? —I don’t know. But I know it’s _______ than that of China. A. What; smaller B. How much; smaller C. What; less