1.Li Lei and Bob ——（sweep）the floor when i left the classroom
2.nothing could stop them form ——（take）part in the sports meeting
3.she often helps her mother do the housework(改為同義句)
4.my mother wants me to take out the trash(完成句子)
— — —mother— —to—.
5.i do not want to watch tv because i am very tired(改為同義句)
i am very tired,——i do not want to watch tv
6.he is not cleaning my qoom now(改為祈使句)
— —the room now
7.why are you in(改為同義句)
why are you —— ——
8.themother feeds the baby on cow's milk(改為同義句)
the mother ——cow's milk ——the baby
3.she often helps her mother do the housework(改為同義句)
she often ——her mother —— the housework