1. We should obey the traffic rules.
2. You should be carefully when you cross the road 
3. He shouldn't ride too fast in the city centre.
4. We visit the HCM museum tomorrow.
5. Should he lift that heavy box ?
6. Should I play online games all day ? 
7. He shouldn't park car on the zebra crossing. 

1, We should obey the traffic rules.
3,he shouldn't drive too fast in the city centre.
4, we should visit  Ho Chí Minh museum the tomorrow
6,should i play online game all day?