3.
(A) measure
(B) number
(C) figure
(D) total

49. (A) 15342 (B) 51243 (C) 14325 (D) 54231 (1) If we continue to consume oil at the present rate, we will run out of it in less than a hundred years. (2) Its use grew consistently during the twentieth century, and will continue to do so well into the twenty-first century. (3) However, the world’s supply of oil, from which gasoline is derived, is limited. (4) Its widespread use began in the early 1900s with the mass production of automobiles. (5) Gasoline is one of the most important fuels used in transportation.

50. (A) 154263 (B) 145362 (C) 142536 (D) 156234 (1) Many scientists are trying to predict earthquakes. (2) Furthermore, the predicted earthquake may not take place at all. (3) Instead, they are trying to design buildings and bridges that can resist earthquakes. (4) Scientists cannot predict the exact location, time, or intensity of an earthquake. (5) These predictions are, unfortunately, very uncertain. (6) As a result, the scientists do not think it is useful to announce that an earthquake will take place on certain day.

1. (A) never (B) however (C) ever (D) forever

2. (A) late (B) far (C) long (D) away

4. (A) After (B) Because (C) If (D) While

5. (A) allow (B) talk (C) deny (D) warn

6. (A) more (B) less (C) better (D) fewer

7. (A) pollution (B) earth (C) resources (D) government

8. (A) like that (B) such as (C) for sure (D) as if

9. (A) knowledge (B) wisdom (C) data (D) feeling