Question

3 Choose the right variant -10. I It was funny, I couldn't help (to laugh, laugh, laughing). 2 You had better (to come, come, coming) in time. 3 (Writing, having written, having been written) the address, she put the letter into the envelope. 4 Father made his son (to take, take, taking) part) in the competitions. 5 Don't stop, go on (to read, read, reading).
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Answer 1

1. It was funny, I couldn't help laughing.
2. You had better come in time.
3. Having written the address, she put the letter into the envelope.
4. Father made his son take part in the competitions.
5. Don't stop, go on reading.

Answer 2

1. It was funny, I couldn't help laughing.

2. You  had better come in time.

3. Having written the address, she put the letter into the envelope.

4. Father made his son to take part in the competitions.

5. Don't stop, go on reading.