1. He has been very interested in doing research on _______ since he was at high school.

• a. biology

• b. biological

• c. biologist

• d. biologically

2. Are you sure that boys are more _______ than girls?

• a. act

• b. active

• c. action

• d. activity

3. Most doctors and nurses have to work on a _______ once or twice a week at the hospital.

• a. solution

• b. night shift

• c. household chores

• d. special dishes

4. We enjoy _______ time together in the evening when the family members gather in the living room after a day of working hard.

• a. spending

• b. caring

• c. taking

• d. doing

5. It is parents' duty and responsibility to _______ hands to tae care of their children and give them a happy home.

• a. shake

• b. hold

• c. join

• d. take

6. He is a _______ boy. He is often kind and helpful to every classmate.

• a. frank

• b. lovely

• c. obedient

• d. caring

7. Doctors are supposed to _______ responsibility for human life.

• a. do

• b. take

• c. rush

• d. join

8. _______ sure that you follow the instructions carefully.

• a. Believe

• b. Try

• c. Do

• d. Make

9. Sometimes Mr. Pike has to work very late _______ night to do some important experiments.

• a. in

• b. at

• c. for

• d. on

10. John cannot make a ______ to get married to Mary or stay single until he can afford a house or a car.

• a. decide

• b. decisive

• c. decisively

• d. decision