`1.` If we don't protect the environment, we will destroy ourselves.

`2.` If she is more hardworking, she won't get low marks.

`3.` If he doén't listen to his parents, he will fail.

`4.` They have watched the movie for one hour.

`5.` He hasn't cried for 10 years.

`6.` He hasn't gone abroad before.

`7.` She has driven for 1 month.

`8.` We have eaten since it started to rain.

`9.` Nam is interested in watching television.

`10.` I have never talked to the foreigner before.

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`1.` national television

`2.` comedy

`3.` local television

`4.` news programme

`5.` animal programme

`6.` gameshow

@ `Ly`

1. Unless we protect the environment, we will destroy ourselves.

If we don't protect the environment, we will destroy ourselves.

2. Unless she is more hard-working, she will get low marks.

If she isn't more hard-working, she will get low marks.

3. Unless he listens to his parents, he will fail.

If he doesn't listen to his parents, he will fail.

4. They began watching the movie one hour ago.

They have watched the movie for one hour

5. He last cried ten years ago.

He has never cried for ten years

6.This is the first time he went abroad. =>He hasn't gone abroad

7. She started driving 1 month ago. => She has driven for 1 month

8. We began eating when it started to rain. => We have eaten since it started to rain.

9. Nam LIKES watching televison -> Nam IS interested in watching televison

10 It's the first time that I have ever talked to the foreigner. -> I have never talked to the foreigner.