Поставьте частицу ‘to’ перед глаголом в скобках, где необходимо: 1. they were supposed (know) german well. 2. i didn’t expect her (marry) him. 3. she was seen (cross) the street and (turn) round the corner. 4. that is too heavy for one person (carry); let me (help) you. 5. he tried (make) me (believe) that he was my stepbrother.

1.They were supposed to know German well.
2. I didn’t expect her marry him.
3. She was seen to cross the street and to turn round the corner.
4. That is too heavy for one person to carry; let me to help you.
5. He tried make  me to believe that he was my stepbrother.

1. They were supposed to knoe German well.
2. I didn't expect her marry (marrying) him.
3. -
4. That is too heavy for one person to carry, let me help you.
5. He tried to make me believe that he was my stepbrother.