Exercise 1: Choose the most suitable word or phrase 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.     You are old enough to take for what you have done.     
  a. responsible       b. responsibility    
   c. responsibly       d. irresponsible
4.     These quick and easy can be effective in the short term, but they have a cost.     
  a. solve       b. solvable       c. solutions       d. solvability
5.     He was looking at his parents , waiting for recommendations.   
    a. obey      b. obedience       c. obedient     
  d. obediently
6.     The interviews with parents showed that the vast majority were of teachers.      
a. support       b. supportive       c. supporter       d. supporting
7.     It is of you to leave the medicine where the children could get it. a. care                      b. caring                      c. careless                      d. careful
8.     For reasons, passengers are requested  not to leave any luggage unattended.
a. secure                     b. securely                      c. security                      d. securing
9.     The leader of the explorers had the great in his native guide.                                                              a. confident             b. confidence                     c. confidential         d. confidentially
10. We are impressed by his to help us with the hard mission.                                                         a. will                      b. willing                      c. willingness                      d. willingly Exercise 2: Use the proper form of the word in parentheses to fill in the blank.
1.             She acted in passive to her manager’s directions. (obedient) 2.             She was very during my father’s illness. ( support) Going to university  has made her more . (confide)
3.             We hope the difficulty can be  by getting the two sides together to discuss the issues. (solution)
4.             Can I rely on you to behave when I’m away? (responsible) 5.             He admitted to smuggle cannabis. (attempt)
6.             This story makes a of children’s clothes. (special) What she likes best is to go to the and she her dear little child. (nurse)
7.             Not knowing which colour he would like, I have not come to a on what sweater to buy him. (decide)
8.     The nurse is always kind and gentle to us. She is a very person. (careful) Exercise 3: Choose the best option
1.     People in 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
2.     Doctors are supposed to responsibility for human life.         
   a. do       b. take         c. rush        d. join
3.     sure that you follow the instructions carefully.            
 a. Believe       b. Try       c. Do       d. Make
4.     We are not allowed jeans at school.    
a. wear       b. to wear      
c. wearing       d. worn
5.     Sometimes I do not feel like to my sibling about my troubles.      
a. talk       b. to talk      c. talking       d. talked 6.     With greatly increased workloads, everyone is pressure now.      
a. under       b. above       c. upon       d. out of
7.     He was very respectful at home and to his parents.      
a. responsible       b. caring       c. obedient       d. lovely
8.     According to the boss, John is the most for the position of executive secretary.
a. supportive                       b. caring                c. suitable                       d. comfortable
9.     Peter tried his best and passed the driving test at the first .
a. try                       b. attempt                       c. doing                       d. aim
10. She is never willing any personal question.
a. answer        b. to answer      
c. answering        d. answered​