英语根据下列汉语提示完成句子,每空一词
1,betty often clwans the blackboard.（用now改为现在进行时） betty ____ ____ the blackboard now.
2.they are doing the housework.（改为否定句） they ____ ____ the housework.
3.her uncle is washing the car now.（改为同义句） her uncle is washing the car ____ ____ ___.
4.david is playing basketball in the playground.(对划线部分：david提问）____ ____ playing basketball in the playground?
5.the girls sre looking at the nice clothes.(对划线部分：looking at the nice clothes提问.） ___ are the girls ____?