TỔNG HỢP KIẾN THỨC VÀ BÀI TẬP TIẾNG ANH LỚP 7 3. Wash your hands ....... of catching flu. 4. Children do more exercises than adults, so they are 5. People who smile carefully. You will have .......... chance ****** active. are happier, and they live longer. Exercise 5: Arrange these words to make complete sentences: