完型填空
先通读，掌握大意，然后从下面四个选项中选择可以填入相应空白处的最佳答案。
Mr. and Mrs. Green are___（1）___teachers. They teach in a big school. They go to school __（2）__ car. They leave home ___（3）___ seven in the morning and come  ___（4）___ home at five in the afternoon. They have two children. One is Tom, and __（5）___ is Ann. Both of them ___（6）___ students. They go to school by bus. Some of ___（7）____ friends walks to school. Tom and Ann __（8）__home at four in the afternoon. They do their homework ____（9）___supper and they watch TV after supper. They usually go to bed early on Saturdays ___（10）____Sundays.
（1）A. all          B. both           C. each          D.every
（2）A. with         B. in            C.by              D. on
（3）A. for          B. to             C.at             D. in
（4）A. to           B. back           C. at            D.in
（5）A. the other    B. other          C.another         D.another one
（6）A. are          B.were            C. is             D. was
（7）A. theirs       B.their           C. they           D. them
（8）A. arrive in    B. gets to        C.arrive at       D. get
（9）A. when         B. before         C.in              D. at
（10）A. and         B. to            C. but            D. so