I/

1. If you work hard, you will pass the exam.

2. If he fails his examination, his parents will be sad.

3. If Sue goes out this weekend, she won't have time to study.

4. If it snows tomorrow, I will go skiing.

5. If he leaves soon, he won't miss the bus.

6. If you play with matches, you will hurt yourself.

II/

1. If we all use reusable shopping bags, we will be able to save the environment.

2. If more people cycle, air pollution will be decreased.

3.        (mình không rõ)       *Sorry ạ*

4. A lot of fish will die if factories dump raw sewage into the river.

                                            (Chúc bạn học tốt)

1. If you work hard, you will pass the exam.

2. If he fails his examination, his parents will be sad.

3. If Sue goes out this weekend, she won't have time to study.

4. If it snows tomorrow, I will go skiing.

5. If he leaves soon, he won't miss the bus.

6. If you play with matches, you will hurt yourself.

II.

1. If we all use reusable shopping bags, we will be able to save the environment.

2. If more people cycle, air pollution will be decreased

3. We will save a lot of trees if we stop wasting papers.

4. A lot of fish will die if factories dump raw sewage into the river.

- $Answered_{}$ $by_{}$ $thieukhue_{}$ -