Rewrite the sentences(按要求改写下列句子,每线一词)
1.Feed the cat, please. (改为否定句)
________ ________the ________,please.
2.There is a sheep on the grass. (改为复数句)
________ ________some ________on the grass.
3.My father is in the office. (根据划线提问)
________ ________ your father?
4.This is a fountain. (改成复数句)
__________________________________
5.They are ducks. (根据划线提问)
__________________________________