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1. There are many … red blood cells moving freely in the plasma. A. rectangular B. triangular C. oval D. circular 2. Red blood cells are … white blood cells. A. the same size as B. larger than C. smaller than D. sometimes smaller sometimes larger than 3. Platelets are small, dark, … - shaped bodies. A. triangular B. circular C. rectangular D. oval 4. The centers of the red blood cells are … . A. a dark colour B. transparent C. a light colour D. multicloured 5. … protect against diseases. A. Plasma B. white blood cells C. red blood cells D. platelets 6. … is the liquid part of the blood that carries cells and proteins throughout the body. A. plasma B. platelets C. red blood cells D. white blood cells 7. … help blood clot and seal wounds. A. red blood cells B. white blood cells C. platelets D. plasma 8. … carry oxygen within haemoglobin and give blood its red colour. A. red blood cells B. platelets C. white blood cells D. plasma 9. My boy friend and I … a film for about an hour when you come (to watch A. will be watching B. will watch C. will have been watching D. will have watched 10. I’m sure she … to music when you knock on the door (to listen). A. will be listening B. will listen C. will have been listening D. will have listened