Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.

Engineers are still trying to come up with a commercially viable replacement for internal-combustion engines.

Choose the best option A, B, C or D to complete each of the sentences from 21 to 39.

You ______ take your umbrella along with you today. The weatherman on the news said there's a storm north of here and it ______ rain later on this afternoon.

Choose the best option A, B, C or D to complete each of the sentences from 21 to 39.

He was ______ when I had those problems and said whatever I did he would stand by me.

Choose the best option A, B, C or D to complete each of the sentences from 21 to 39.

We are ______ no obligation to change goods which were not purchased here.

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

All nations may have to make (A) fundamental changes (B) in their economic, political, and the technological institutions (C) if they are to preserve (D) environment.

Choose the best option A, B, C or D to complete each of the sentences from 21 to 39.

The firemen did well ______ their preparation for catastrophic gas explosions.

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

The closer(A)  it gets to December 21, the first day of winter(B) , the short(C)  the days become(D) .

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.

I have a modest little glass fish tank where I keep a variety of small fish.