用动词ing形式改写下列句子1.After the students had cleaned the classroom,the students went to the playground to watch the football match.2.Our town has dozens of factories ,which includes several saw mills.3.She is writing a letter to a friend of hers ,for she wants to invites him to attend the meeting.4.After the city had been flooded for several weeks ,the city needed food.5.The secretary worked late into the night,she prepared a long speech for the president.6
问题描述：
用动词ing形式改写下列句子
1.After the students had cleaned the classroom,the students went to the playground to watch the football match.
2.Our town has dozens of factories ,which includes several saw mills.
3.She is writing a letter to a friend of hers ,for she wants to invites him to attend the meeting.
4.After the city had been flooded for several weeks ,the city needed food.
5.The secretary worked late into the night,she prepared a long speech for the president.
6.I fell ill,which worried my parents.
答