Question

Exercise 4. Complete the following sentences using must or must not and a suitable verb.Take verbs from those given in the box.
1. Pedestrians ____ the road only at the zebra crossing.
2.You ____ this medicine regularly for at least three days.
3. These books ____ us before 10th January.
4. The dues ____ paid by the 7th of every month.
5. We ____ our parks clean and litter-free.
6.The government ____ the public transport system in the city.
7. Children ____ a moving bus. It can be dangerous.
8. Tell the workers that they ____ the instructions carefully.
take
Cross
reach
follow
be
keep
board
improve​

Answer 1

Explanation:

1)cross 2)take 3)reach 4)be 5)keep 6)improve 7)follow 8)follow

Answer 2

I hope it is correct and it helps you