6.->Van is always forgetting his homework.

7.->Do you mind helping me put the chairs away.?

8.-> I'd rather you didn’t make any noise because I am tired

9.-> It is very interesting to have a vacation abroad

10->The water wasn’t warm enough for the children to swim in

TK:

1. It's important to keep the environment clean.

2. The time machine will be shown to the public when it is finished. 

3.  He was delighted that his aunt sent him a letter.

4. People recycled old car tires to make shoes and sandals.

5. I'm very sad not to be accepted in that group.