TOEFL - GRAMMAR

1. One of the most effective vegetable protein substitutes is the soybean_______used to manufacture imitation meat products.

• which can be

• it can be

• who can be

• can be

-

2. ________1000 species of finch have been identified.

• As many as

• As many

• As much as

• Much as

3. The first electric lamp had two carbon rods from which vapor serves to conduct the current across the gap.

• The first

• which

• serves

• to conduct

4. A thunderhead, dense clouds that rise high into the sky in huge columns, produce hail, rain, or snow.

• A

• rise

• high

• produce

5. According to the econom.ic laws, the greater the demand, _______the price.

• higher

• high

• the higher

• the high

6. Although no country has exactly the same folk music like that of any other, it is significant that similar songs exist among widely separated people.

• no country

• like

• that

• widely

7. Despite of the Taft-Hartley Act which forbids unfair union practices, some unions such as the air traffic controllers have voted to strike even though this action might endanger the national security.

• Despite of

• forbids

• such as

• to strike

8. The Continental United States is _______ that there are four time zones.

• much big

• too big

• so big

• very big

9. Benjamin West contributed a great deal to American art: _______

• painting, teaching, and lecturing

• painting, as a teacher and lecturer

• painting, teaching, and as a lecturer

• a painting, a teacher, and a lecturer

10. Operant conditioning involves rewarding or punishing certain behave to reinforce or extinguish its occurrence.

• behave

• to reinforce

• or extinguish

• its occurence