chuyên đề mạo từ. cau1:people are increasing ly worried about environment. A:the. B:a. C:an. D:no article. cau2: Neil Armstrong was first person to set foot on the surface of moon. A:a- no article. B:an-the. C:a-an. D:the-the. cau3: Everets is highest mountain on earth, situated on the border between Nepal an Tibet in the west of china. A:no article-the. B:a- no article. C:an -the. D:a-an. cau4:Famous mainly for his wonderful voice,Cole was also a virtuoso on piano. A:an. B:no article. C:the. D:a. cau5:there is shortage of teachers,especially in music and science. A:an. B:the. C:no article. D:a. cau6:After all these years you look exactly same-youhaven't changed a bit. A:a. B:the. C:an. D: no article. cau7:"how much money do you have on you?"-"100 in notes and a few coint". A:no article. B:a. C: an; D:the. cau8:the job wasn't exciting,but money was good. A:The. B:a. C:no. D:an. cau9:We hadn't planned to be in France at the same time as Ann and charles - it was just happy coincidence. A:the. B:a. C: no article. D: an. cau10:school days are said to be happiest days of your life. A:a. B: the. C:an. D: no article.