Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions (41-45) 

     The rules of etiquette in American restaurants depend upon a number of factors the physical location of the restaurant, e.g, rural or urban; the type of restaurant, e.g, informal or formal; and certain standards that are more universal. In other words, some standards of etiquette vary significantly while other standards apply almost anywhere. Learning the proper etiquette in a particular type of restaurant in a particular area may sometimes require instruction, but more commonly it simply requires sensitivity and experience. For example, while it is acceptable to read a magazine in a coffee shop, it is inappropriate to do the same in a more luxurious setting. And, if you are eating in a very rustic setting it may be fine to tuck your napkin into your shirt, but if you are in a sophisticated urban restaurant this behavior would demonstrate a lack of manners. It is safe to say, however, that in virtually every restaurant it is unacceptable to indiscriminately throw your food on the floor. The conclusion we can most likely draw from the above is that while the types and locations of restaurants determine etiquette appropriate to them, some rules apply to all restaurants. 

The author uses the phrase “safe to say” in order to demonstrate that the idea is ______.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions (20-24) 

     The latest addiction to trap thousands of people is the Internet, which has been (20) ______ for broken relationships, job losses, financial ruin and even one suicide. Psychologists now recognize Internet Addiction Syndrome (IAS) as a new illness that could (21) ______ serious problems and ruin many lives. Special help groups have been set up to offer sufferers help and support. IAS is similar to (22) ______ problems like gambling, smoking and drinking: addicts have dreams about the Internet, they need to use it first thing in the morning; they lie to their partner about how much time they spend online; they wish they could cut down, but are unable to do so. A recent study found that many users spend up to 40 hours a week on the Internet; although they felt guilty, they became depressed if they were (23) ______ to stop using it. 

     Almost anyone can be at risk. Some of the addicts are teenagers who are already hooked on computer games and who (24), ______ it very difficult to resist the games on the Internet. Surprisingly, however, psychologists say that most victims are middle-aged housewives who have never used a computer before.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions (1-15) 

Mark the letter A, B, C or D on your answer sheet to indicate the underlined part that needs to correction on each of the following questions (48-50) 

Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions (39- 40)