29 Unless he works harder, he will lose his job

30 A new mall will be built here

31 Your English is better than mine

32 This is the first time I have eaten this kind of food

33 A man who has 2 daughters is the president of the USA

34 If we pollute the water, we will have no fresh water to use

29. Unless he works harder, he'll lose this job. ( unless = if... not )

30. A new mall will be built here.

-> Câu bị động tương lai đơn: S + will be + Vpp

31. Your English is better than mine.

-> So sánh hơn với good: S + be + better + than + O

32. This is the first time I have eaten this kind of food.

-> This is the first/second time + S + have/has + Vpp

33. A man who is the president of the USA has two daughters.

34. If we pollute the water, we will have no fresh to use.