Complete the sentences with the most suitable words. (15 pts)
6. There are_______ saving methods and inventions to use solar energy.
A. energetic B. energize C. energy D. energetics
7. I had to pay much money this month for the international_______.
A. calls B. calling C. to call D. called
8. She is very tired; _______, she has to finish her homework.
A. moreover B. so C. and D. however
9. She forgot_______ off the gas before going out.
A. turn B. turning C. to turn D. turned
10. I suggest_______ money for the poor people in our neighborhood.
A. save B. to save C. saving D. saved
11. Can you tell me the reasons for_______ the Mother’s Day?
A. celebrating B. celebration C. celebrate D. celebrated
12. What activities do you want to_______ in at school and at the club?
A. taking part B. taken part C. take part D. took part
13. I live in Dalat, _______ is one of the most beautiful cities of Vietnam.
A. who B. which C. whom D. whose
14. The people_______ live in Greece speak Greek.
A. which B. whom C. where D. who
15. Tet is a festival_______ occurs in late January or early February.
A. who B. which C. whom D. when
16. This newspaper is_______ every day. It’s a daily newspaper.
A. publishing B. published C. to publish D. publish
17. He is tired_______ he stay up late watching TV.
A. so B. because C. but D. and
18. We are talking about the preservation of_______ resource.
A. natural B. naturally C. nature D. naturalize
19. I will be_______ if she manages to sell that motorbike at a high price.
A. surprise B. surprised C. surprising D. to surprise
20. Unless you understand, I_______ explain it again to you.
A. am B. was C. will D. would.