B more carefully August. C. at D. for C. took off 24. We got on the plane and waited about 10 minutes before it A. turned down B. took on Mark the letter A, B, C, or D on your answer sheet to indicate the word CLOSEST in meaning to the underlined words in each of the following questions. D. picked up B. compulsory D. convenient 25. The scientists worked very hard and they finally achieyed some great results with this drug. A. disappointed Cwonderful 26. The relationship is very complicated. He's my mother's cousin's daughter's A. easy to understand B. difficult to understand C. big enough son. 23. We invited 200 guests to our party A. in B. on C. Careful D. too large