Question

Choose the right variant
1. I dont know these words. I ________________learn them/
a. must b.have to c. dont have to
2.Pupils__________ listen to their teacher.
a. have to b.havent to c. must
3.I ____________ do my homework because I have already done it.
a. mustnt b. dont have to c.must

Спасибо.

Answer 1

1. I dont know these words. I must learn them.
Я не знаю эти слова. Я должен изучать их.
2. Pupils must listen to their teacher.
Ученики должны слушать своего учителя. 
3. I mustnt do my homework because I have already done it.
Я не должен делать мою домашнюю работу, потому что я уже сделал ее.