$14.$ Nobody wants to play with him because he's a liar.

$15.$ Robots will be able to do more work for people in the future.  

$16.$ My friend has got a great personality.

$17.$ He was dishonest in the last exam.

          She is honest in the exam.

$18.$ If the weather is rainy, it will prevent us from going out.

          He stopped her from going to the house.

$19.$ You should talk with him. He has contact with that person.

$20.$ I have to hand in my homework every Sunday ( :((( That's true).

$21.$ He is on the point of going to the cinema.

          They are going to have a party.

$22.$ They were on the point of doing homework.

$23.$ They won't throw rubbish on the street if they are aware of the negative effects of pollution.

$24.$ She's putting forward of her boss.

          There's a good proposal. You should read it.

$25.$ He was taken back by the accident.

          They are being surprised at the accident.

Mình hiểu đề sao thỳ mình làm vậy nha ^^ Nếu sai Mod xoá hộ ạ :>

14. He always tells lie to us. He is such a liar.

15. I am able to finish this task quickly.

Be able to V: có thể làm gì

16. Everyone know my mom is really kind. She has got a great personality.

17. Her child, Nam, is really honest. However, she is on the contrary.

18. This heavy rain prevents them from going fr a walk.

Prevent/ stop somebody from Ving: ngăn cản ai làm gì

19. I have not had contact with him since he left school.

have contact with sb: có liên hệ với ai

20. My teacher said it was time to hand in our homework.

hand in your homework: nộp bài (kh nhất thiết là btvn đâu ạ)

21. She is on the point of going to school.

= She is going to go to school.

to be on the point of Ving: chuẩn bị làm gì (= be going to)

22. She was on the point of handing in her notice when her boss said it was not needed then.

23. I became aware of him staring at me all the time.

Be aware of sth (adj): nhận thức được

24. He put forward me as head of publicity.

put ở đây ở thì quá khứ nên không thêm 's' bạn nhé :>

Put forward sth: đề xuất Proposal (n): bản đề xuất

25. He was suddenly taken aback by the noise of the thunder.

= He was surprised at the noise of the thunder

Be taken aback by sth = be surprised at sth: ngạc nhiên về cái gì