They have washed their hands 改为否定句

They have washed their hands 改为否定句 They have not washed their hands.改为肯定句 1.They can walk with their hands.（改为改为否定句) They have already finished their homework（改为否定句） they often their honework on their computers 改为否定句 完成句子 They have already finished their work .（改为否定句） They have English watches.改为否定句 They have a basketball(改为否定句) they have some beans.(改为否定句) They visit their grandparents on Sunday.(改为否定句) They must finish their work before lunch 改为否定句 they will visit their grandpa this weekend 改为否定句