I. 选择填空（共20小题；每小题1分，计20分）
从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。
1. Mr Brown _________ England. He _________ London for about three weeks.
A. has been to; has been to B. has been to; has been in
C. has gone to; has been to D. has gone to; has been in
2. The word “mouth” has _________ “m”, _________ “u” and _________ “h” in it.
A. an; an; a B. a; an; an C. an; a; an D. a; an; a
3. There are forty students in our class. Some are from Britain and _________ are from China.
A. another B. other C. others D. the others
