18. We should give unused clothes to_____________to help the people in need.
A. charity B. factory C. market D. hospital
19. My head hurts. I need to take a ……….
A. sun cream B. backpack C. walking boots D. painkiller
20. She is always____________ at school. She spends most of the time studying
A. hard-working B. careful C. lazy D. funny
21. “I’ve just received a scholarship”- “__________”.
A. Well
B. Thank you
C. Really
D. Congratulations
22. A hi-tech robot will help us __________ children while we are away.
A. look after
B. look in
C. look at
D. look out
23. I didn’t go to school yesterday ___________ I was ill
A. although
B. so
C. because
D. but
24. If we ________cutting down the trees, we can’t prevent floods and other natural disasters
A. don’t stop
B. stop
C. won’t stop
D. will stop