1. You shouldn't believe everỵthing you read in the newpapers
2. It's raining. You should take an umbrella
3. Excuse, but may I ask you something personal
4. You may not be blind if you can see that sign.
5. Listen. I may be late this evening, so don't wait for me
6. Is you see huong, may you give her this message?
7. Before the plane lands, the "No smoking" sign must come on
8. When the "No smoking" sign comes on, you must stop smoking
9. The train must be here in a few minutes, but you never know
10. Don't make so much noise. We mustn't/may wake the baby up
1 shouldn't
2should
3 may
4 may
5 shouldn't
6 may
7 must
8 must
9 may
10 mustn't
1. shouldn't
2.should
3. may
4. may not
5. may
6. may
7. must
8. must
9. must
10. mustn't / may