IV. Mark the letter A, B, C or D on your answer sheet to indicate the correct answer that best completes each unfinished sentence; best substitutes the underlined part; or has the same meaning to the sentence given.
I don’t think it is a good idea to burn trash to reduce the amount of garbage we produce to protect ________ environment.
A.the
B.Ø 
C.a   
D.an

IV. Mark the letter A, B, C or D on your answer sheet to indicate the correct answer that best completes each unfinished sentence; best substitutes the underlined part; or has the same meaning to the sentence given.
Though the two pen pals live in different countries, they try to keep _________ touch.
A.in
B.on
C.out of       
D.with

III. Choose the best answer A, B, C or D for each sentence.
_______, I'd like to thank everyone _______ coming this evening.
A.Always-to     
B.Finally-for       
C.Often-by           
D.Lastly-with

It is necessary that we could finish our work on time.
A.It is
B.could
C.finish
D.on time

Collecting stamps is one of her hobbies.
A.She likes collecting stamps.
B.She likes collecting stamps most.
C.She collects stamps to sell
D.She isn't interested in collecting stamps.

If it doesn't rain soon, there’ll be a great_____ of water. (SHORT)
A.shortage
B.shortly
C.shorten
D.shortcut

_________(65)
A.commercials
B.surroundings
C.individuals
D.traffic

__________(60)
A.offer
B.bring
C.discharge
D.cause

VIII. Choose the correct sentence among A, B, C or D which has the same meaning as the given one.
Mr. Smith has been to Australia.
A.Mr. Smith has just left for Australia and will soon be there.
B.Mr. Smith left some time ago, and he is in Australia now.
C.Mr. Smith has visited Australia many times in the past.
D.Mr. Smith has visited Australia at some time but isn't there now.

_________(57)
A.because
B.so
C.that
D.while