__________the cause of mass fish kill along the country’s central coast has not been determined, scientists have recommended solutions to quickly identify the source of the problem.

Sarah: “What time shall we leave?”                Tom: “__________ .”

Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction in each of the following questions.

The(A)  girl whom(B) I borrowed the dictionary asked me to(C) use it carefully(D) 

Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction in each of the following questions.

Have(A)  the members of the club be told(B) about the changes(C) of their timetable(D)  yet?

This car is __________of the two models in the showroom.

Mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that is CLOSEST in meaning to the underlined part in each of the following questions.

Scientist often forecast an upswing in an economy after a protracted slowdown.

Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction in each of the following questions.

It is often said(A)  that the British talks(B) about the weather more than(C) any other people(D)  in the world.

Some people think that the Queen should __________and allow the Crown prince to become King.