1. He’s never lived with his grandmother since he was born , _______ ?
A. does he B. doesn't he C．has he D．hasn't he
2. The pollution at present has become more serious than________ in the past .
A. it B. those C. the one D. that
3. The shop ________ since two years ago.
A. is open B. has opened C. has been open D. has been opened
4. Mr. Li ______ England . He _______ London for two days .
A. has been to , has been to B. has been to , has been in
C. has gone to , has been in D. has gone to , has been to
