7 What___________ an environment disaster is fortunately prevented because the newest detecting machine proves to be working.
(A) do we call
(B) should be
(C) shouldn’t have been
(D) could have been

3 They don’t have enough sales people to___________ all the customers. (A) wait on (B) wait up (C) work out (D) work off

4 Competition for a research___________ from the National Science Council is keen. (A) strategy (B) insight (C) grant (D) method

5 With the goal of attracting foreign investments, our government has determined to upgrade the___________ , including building a new highway and a power plant. (A) authorization (B) bureaucracy (C) embezzlement (D) infrastructure

6 After going through so many tragic events in his life, Joseph experienced an emotional ___________and needed to seek help from a psychiatrist. (A) cavity (B) legend (C) massacre (D) turmoil

8 The living conditions of old people,___________ , are important factors that contribute to good health and longer life. (A) includes housing, dietary habits, and exercise (B) include housing, dietary habits, and exercise (C) which includes housing, dietary habits, and exercise (D) which include housing, dietary habits, and exercise

9 The secretary is very organized in keeping all files___________ . (A) in order (B) by order (C) on order (D) out of order

10 The children kept pestering their father to give the idea a shot. (A) The children tried hard to persuade their father to abort the idea. (B) The children expected their father to develop their original idea. (C) With their wild idea, the children were pests to their father. (D) The children kept asking their father to reconsider their idea.

11 It is in the shelter of each other that people live. (A) We provide housing for each other. (B) People in the house depend on each other. (C) Everyone has a shelter to live in. (D) We rely on each other for our survival.

12 The public reads reviews of plays, movies, and concerts in order to decide whether or not to attend them. The same could hardly be said of buildings, which would be inhabited—or used—irrespective of any positive or negative evaluation. (A) In a way, it is futile to review buildings in popular press because such reviews can’t change anything. (B) Buildings, having some elements of artistic design, should be reviewed so the public can appreciate them better. (C) Reviewing buildings in popular press is quite the same as reviewing other works of art. (D) Buildings, like other forms of art, should be reviewed to educate the public.

13 (A) at (B) in (C) with (D) for