Question

Choose the correct modal verb: people .... throw litter in the streets A) should B) mustn't C) must E) haven't to D) oughtn't

Answer 1

B) mustn't
Потому что он выражает, что людям не разрешается выбрасывать мусор на улицы.

Answer 2

The correct modal verb in this sentence is:

A) should

So, the sentence would be: "People should not throw litter in the streets."