21.When the timid girl went to ___ countryside to stay with her grandma , she soon came to ___life.
A. the; / B. the ; a C. /; / D./ ; the
22. -----______! There is a car coming !
-----Thank you very much for telling me . You saved my life !
A. Good luck B. Cheer up C. Watch out D. Well done
23. The high –speed train had now made ____ possible for us to go to Beijing from Shanghai within five hours
A. it B. one . C. them D. that
