一、单选题
1.Mike found his missing car in the street outside his house, newly cleaned and polished.
A. looked B. looking C. to look D. to be looking
2.I was told that there were about 50 foreign students________ Chinese in the school, most _______ were from Germany.
A. studied; of whom B. study; of them C. studying; of whom D. studying; of them
3.The other two areas ____ British English and American English____ are spelling and pronunciation.
A. that; differ B. which;differ in C. in that; differ D. in which; differ in
4.Don't leave the water while you brush your teeth.
A. run B. running C. being run D. to run