1. His father must be an engineer. - ok
2. It must.....happened last night. has
3. He must ...preparing for the exam in chemistry now. be
4. Elena must be ill;She never misses a lesson. -ok
5. He must be knows your father. ing
6. He must be there at half an hour. -ok
7. They must have discuss.. the problem. - discussed
8. It must be raining in Chernigiv. -ok
9. You must be cold, put on a coat. ok
10. They must.... already built a new bridge across the Dnipro. have
2. It must.....happened last night. has
3. He must ...preparing for the exam in chemistry now. be
4. Elena must be ill;She never misses a lesson. -ok
5. He must be know
6. He must be there at half an hour. -ok
7. They must have discuss.. the problem. - discussed
8. It must be raining in Chernigiv. -ok
9. You must be cold, put on a coat. ok
10. They must
ОтветитьУдалить2. It must has happened last night
3. He must be preparing for the exam
5. He must be knows your father.
7. They must have discussed the problem.
10. They must have already built a new bridge across the Dnipro.