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