Choose the best answer among A, B, C or D to complete the sentences. (3 pts) Question 13: He’s not really interested in _________ on the farm. A. to work B. work C. worked D. working Question 14: The air is polluted _________ there is too much traffic A. because B. therefore C. however D. but Question 15: We need to protect our _________ resources. A. natural B. nature C. naturally D. natures Question 16: The children have to come back before dark, _________? A. do they B. have they C. don’t they D. haven’t they Question 17: Do you know the man _________ we met at the party last night? A. whom B. which C. what D. where Question 18:- “Would you like a glass of green tea?” - “___________________________” A. No, let’s not B. No, I don’t C. No, thanks. D. No, I wouldn’t. Question 19: The journey to the village is very _________. A. interested B. interestingly C. interest D. interesting Question 20: Covid-19 was first identified ________ December 2019 in Wuhan, China. A. in B. at C. on D. since Question 21: The house _________ 100 years ago. A. built B. has been built C. is built D. was built Question 22: You should reduce __________ of water your family uses. A. the number B. the quality C. a number D. the amount Question 23: He asked me ________? A. where did I live B. where I lived C. where do I live D. where I live Question 24. A:“ I’ve passed my final exam.” - B: “-------------.” A. Good luck! B. It’s nice of you to say so. C. That’s a good idea. D. Congratulations!