1, If there ( not be) gravity, the moon ( shoot) into space instead of traveling around the earth. 2, If I were your age, I (do) differently. 3 , If I should find your passport, I ( telephone you at nice. 4, If I (have) wings, I (not 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 (be ) 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 (float) . 8, It is been a long drought. It hasn't rained for over a month. If it ( not rain) soon, a lot of crops(die). If the crops ( die) many people ( go) hungry this coming winter. 10, People ( be) able to fly if they ( have) feathers instead of hair? Bài 2: kết hợp các câu sau dùng mệnh đề IF 1. Maybe it will rain tomorrow night. I will stay at home. 2. Maybe it will be hot tomorrow . I will go swimming 3. Maybe Adam will have enough time. He will finish his homework 4. Maybe I won't get a letter tomorrow . I will call my aunt 5. We will go on a picnic. Maybe the weather will be nice tomorrow helppp meee 2 bài này đg cần gấp