Ⅰ.完成句子
1． (听到坏消息)，Mary felt very sad.
2． (这儿没有公共汽车)，we had to go to work on foot.
3．The fire lasted nearly five days， (没有剩下什么值钱的东西)．
4．You must be careful 过马路的时候)．(
5． (虽然从早到晚地拼命干)，his father didn't get enough food.
【答案】 1.Hearing the bad news 2.There being no bus 3.leaving nothing valuable 4.when crossing the street 5.Although working hard from morning till night
