IV.

1. I took part in the swimming competition at my school last month and won the second prize.

2. If we cycle to school everyday, we will reduce air pollution.

3. If is snows tomorrow, I'll go skiing.

V.

1. If you go out in the rain, you'll get wet.

2. If she invites me, I'll go.

3. If it is stormy, children won't have to go to school.

4. If you don't reduce your use of water, you'll have to pay a lot.

IV.

1. I took part in the swimming competition at my school last month and won the second prize.

2. If we cycle to school everyday, we will reduce air pollution.

3. If is snows tomorrow, I'll go skiing.

V.

1. If you go out in the rain, you'll get wet.

2. If she invites me, I'll go.

3. If it is stormy, children won't have to go to school.

4. If you don't reduce your use of water, you'll have to pay a lot.

Cấu trúc

           If + S + V (hiện tại), S + will + V (nguyên mẫu)

                                     $YvdL^{3000}$