No matter how hard he tried, Mike could not make sense of his economics textbook
A. If Mike had studied harder, he would have been able to comprehend what was in his economics textbook
B. In spite of his efforts, Mike was unable to understand the contents of his economics textbook
C. Mike could not understand his economics textbook because he hardly tried to at all
D. It was impossible for Mike to understand his economics textbook without making a great effort

Four miles off the southeastern coast of Massachusetts
……………a popular summer resort
A. lies the island of Martha’s Vineyad
B. the island of Martha’s lie there
C. does lie the island of Martha’s Vineyad
D. where the island of Martha’s lies

In all parts of the U.S there is (adequate) rainfall except near the
Rock Mountains
A. sufficient
B. acceptable
C. abundant
D. suitable

The traffic in town was very _________and I arrived home earlier
than expected
A. light
B. weak
C. little
D. few

Only by staying in the city for at least a week would it be possible for one to see all the
sites
A. If you wanted to look at all the sites in the city, you would need to be there not less than a week
B. A week at the most was enough to visit all the sites in the city
C. You should extend your stay here for another week if you want to see all the sites in the city
D. Even though you may stay there longer, it only needs a week to see all the attractions

(Research) in the United States on acupuncture (has focused) on (it) use in (pain relief) and anesthesia

Pepsin ………..an enzyme used in digestion
A. that
B. is
C. of
D. being

I'd like to buy that glass vase you have in the window _____ the one with the roses on the side. 
A. inscribed B. tattooed C. designed D. etched

The official inquiry into the accident ......... the captain of all responsibility.
A. cleared B. released C. freed D. relinquished

Writing is a skill that requires (consistent) practice
A. invariable
B. orderly
C. regular
D. customary