1-If there (not be) ……………enough water, these tree will die. 2-If I were your age, I (do)……………………… differently. 3-If I should find your passport, I (telephone) ………………….you at once. 4-If I (have)…………. wings, I wouldn’t have to take an airplane to fly home. 5-This letter will be in Ho Chi Minh in two days. I’m sure if I send it today, it (arrive) …………in time. 6-I am not an astronaut. If I were an astronaut, I (take) ………………my camera with me. 7-Most people know that oil floats on the water. If you (pour)…………….. oil on the water, it will float. 8-If there (not be) oxygen on the earth, life as we know will not exist. 9- If it (not rain) soon, a lot of crops will die. 10-People (be)……………… able to fly if they had feathers instead of hair? V: Viết lại các câu sau, sử dụng câu điều kiện loai 2: 1-I don’t have a car, so I can’t drive you to the airport. ………………………………………………………………………………… 2-Nam is too young, so he can’t take part in the project to be trained to become an astronaut. …………………………………………………………………… 3-He doesn’t any exercise; that’s why he is so unhealthy. …………………………………………………………………………. 4-He doesn’t help me, possibly because I never ask him for help. …………………………………………………………………….. 5-I don’t know his address, so I can’t write to him. ……………………………………………………………… 6-You work too fast; That’s why you make so many mistakes. ………………………………………………………………………. 7-I don’t have a map, so I can’t direct you. ……………………………………………………………… 8-Enlish people speak very quickly. Perhaps that’s why I can’t understand them. …………………………………………………………………………………. 9-Tom is fat; That’s why he can’t get through the bathroom window. ……………………………………………………………………………….