【正文】
uck! We ________ (climb) Mount Tai when it suddenly ______ (begin) to rain heavily. 15. While the girl ________ ( do) her homework in her room, the thunder and lightning came. 16. ______ (be) you at home at 9 o’clock last night? Yes. I ________ ( take) a shower at that time. 17. Did you see a boy in blue pass by just now? No, sir. I __________ ( read) a newspaper. 18. You should practice a lot if you ________ ( want ) to be good football player. 19. Mum, where are my old socks? Oh, dear! I ___________ (throw) them away already. 20. Don’t go out! It is _______ (rain) hard. 21. You ___________ (return) the magazine to him in two weeks, aren’t you? 22. My cousin ________ (take) a bus to work instead of ______ (drive) a car yesterday morning. 23. Why ________ (not go) you ________ ( go) to school yesterday? 24. There ________ ( be) no hospitals here in the past. 25. Wow! How delicious the fish soup _________ (taste)! 26. What ______ we______ (do) if puter ________ (do) everything for us in the future? 27. I’ll let you _______ (know) the result if the teacher ________ ( agree). 28. If there ___