enough Mark the letter A , B, C, or D to indicate the sentence that best combines each pair of sentences given. 24. My mom had just arrived home. She was called immediately back to the head office. A. Hardly had my mom arrived home when she was called immediately back to the office. B. Because my mom had just arrived home , she was called immediately back to the office. C. Before my mom had just arrived home.she was called immediately back to the office. D. Whenever my mom had just arrived home , she was called immediately back to the office 25. We couldn't solve the problem until our mom went home. A.Not until we solved the problem did our mom go home. B .When our mom went home, we solved the problem. C. Until our mom went home, we were able to solve the problem. D. Not until our mom went home could we solve the problem. Read the following passage and mark A, B , C, D to indicate the correct answer to each of the questions. Despite complaints about the widening generation gap in modern society, in an increasing number of households the generation gap is shrinking or disappearing thanks to (26) __ in parents' attitudes and behaviour. Parents also want to be closer (27) __ their teenage children. A lot of parents have changed their approach to discipline. Instead of forcing their children to do things in a very controlling way, parents try to reason with their children and explain what they expect them to do and why. It is also true that family members have become more open to each other.Topics such as sex and drugs, (28) __ used to be avoided in family conversations, are now more common. (29) __ , parents nowadays are more youthful in appearance and attitudes. It is common to see parents joining in activities such as rollerblading or in-line skating with their children Moreover, the most important factor is that more and more parents and teenagers have found some (30) __ interests. They may share the same tastes in music , films, or other forms of entertainment. 26. A. differences B. features C. changes D. similarities 27. A. from B. to C. at D. in 28. A. when B. what C. who D. which 29. A. In addition B. Therefore C. However D. Because 30. A. commonly B. common C. uncommon D. commonness Read the following passage and mark A, B , C, D to indicate the correct answer to each of the questions. The White House, the official home of the United States president, was not built in time for George Washington to live in it.It was begun in 1792 and was ready for its first inhabitants , President and Mrs. John Adams, who moved in on November 1, 1800. When the Adamses moved in, the White House was not yet complete, and the Adamses suffered many inconveniences; for example , the main staircase was incomplete, which hindered movement from floor to floor, and the future laundry yard was merely a pool of mud , so wet laundry was hung in the unfinished East Room to dry. Thomas Jefferson, the third president.improved the comfort of the White