16. A. must not cheat
B. must trust your friend
C. must not do the best
D. mustn’t be too serious
Dialog for no. 17-18.
Nana: I want to be healthy but I like eating fast food. I can’t go diet.
Rina: I think you ___(17)___have diet, to be healthy ___(18)___ eat more fruits and vegetables.
17. A. should
B. should not
C. Should be
D. shouldn’t be
18. A. Should
B. Should not
C. Should be
D. Shouldn’t be
Dialog for no. 19-20
Mr. Harry: Look at your class! What a messy class!
____(19)_____
Alvin: Yes Sir, I will clean it up after I’ve finished eating these snacks.
Mr. Harry: After you eat your snacks, please____(20)_____
19. A. Go to your class!
B. I will clean it up!
C. Don’t enter your class!
D. Clean up your classroom!