16. INTELLIGENT
B. smart
17. STRONG
C. weak
18. BEAUTIFUL
B. ugly
19. The collect of stamps made him become famous in the country.
B. collect
20. Let's practise listening to English programs in the radio.
D. programs
21. What about play tennis instead of going to the cinema?
B. play
Circle the letter A, B, C or D to indicate the most suitable response to complete each of the exchanges.
22. It is getting stuffy in here, isn't it?
B. Wait for a second, I will turn on the air conditioner
23. I am having trouble concentrating on these math exercises.
A. Well, why don't you take a short break
24. Can you look over this English exercise for me, John?
A. Sure, I will help in just a minute
25. Have you done your homework?
B. You have to focus on these exercises