Question

помогите плиз поставить в предложение must/mustn't/can/can't/have to/don't have to
I ____ forget to buy some
You____ turn down the volume
You____walk on the grass
I____ visit a very important client
You ___ hurry

Answer 1

1.don't have to
2.can
3.can't
4.have to
5.must