1.I don't know which sweater to choose.(改为同义句) I don't know
1.I don't know which sweater to choose.(改为同义句) I don't know _______ _______ ________ ________
1.I don't know which sweater to choose.(改为同义句)
I don't know _______ _______ ________ ________ _________.
2.Does the often mend is car?(改为被动语态)
_______ his car often _______ by him.
3.Must I pay for it at ones?(改为被动语态)
_______ it ________ _______ _________ at once?