<span>If you do not mind, please tell</span>
Мы должны оставить нефть для будущих поколений
<span>1) I can't <u>fly</u> a plane,but l can <u>sail</u> a boat.
2) Don't <u>cross</u> the road when the light is red.
3) If you want to learn how to <u>drive</u> a car, you can go to a driving
school.
4) When the weather was good, l could <u>ride</u> my bike in the park.
</span>
1 If you send an e-mail, it is free.
2 It is dangerous if you don't wear a seatbelt.
3 If you have an injection, it doesn’t usually hurt.
4 If you don't water plants and flowers,they die.
5 If the sea isn’t calm, it isn't safe to swim.