41. Work hard and you will pass your exam.

⇒ If you work hard, you will pass the exam

⇔ Câu điều kiện loại 1

42. My brother is not good at playing tennis.

⇒ My brother doesn't play tennis well.

43. I’ll be on vacation next week, so I won’t be able to attend the meeting.

⇒  Since I’ll be on vacation next week, I won’t be able to attend the meeting.

44. If you don’t start working hard now, you won’t be able to pass the final test.

⇒ Unless start working hard now , you won't be able to pass the final test.

45. Someone should take this garbage to the garbage dump soon.

⇒ This garbage should be taken to the garbage dump soon

⇔ Câu bị động

`41.` Work hard and you will pass your exam

`=>` If you work hard, you will pass the exam

`=>` Câu điều kiện loại 1

`=>` If + S + V_{(s, es)} …, If + S + is/am/are …

`42.` My brother is not good at playing tennis

`=>` My brother doesn't play tennis well

`=>` S + do/does + not + V

`43.` I’ll be on vacation next week, so I won’t be able to attend the meeting

`=>` Since I’ll be on vacation next week, I won’t be able to attend the meeting

`=>` Thì hiện tại hoàn thành

`=>` since cũng có thể đứng đầu câu hoặc giữ câu

`44.` If you don’t start working hard now, you won’t be able to pass the final test

`=>` Unless start working hard now , you won't be able to pass the final test

`=>` Câu bị động

`=>` If `=` unless

`=>` If + câu phủ định `=` unless + câu khẳng định

`45.` Someone should take this garbage to the garbage dump soon

`=>` This garbage should be taken to the garbage dump soon by someone

`=>` Câu bị động