must
- We must pay attention to _______ the teacher carefully in class.
- Must I come back before supper, mum?—No, you .
- Must I return the book tomorrow?— No, you ________. You can keep it for three days.
- Must we clean the classroom now?—No ,you _______.
- Must we clean the classroom now?——No ,you _______.
- We must try our best to stop the pollutiona happier life.
- Must I wait for you here?—No, you ______.
- Must I clean up the classroom right now, Miss Green?– No, you ______.
- Must I answer it in English?—No, you _______. You can use Chinese.
- Must I go there right now, mum?—No, you ____. You can go there tomorrow.