24. C |
immensely
powerful |
We need
this order
adverb + adjective
since we want the adverb immensely to modify the
adjective powerful.
|
25. A |
beauty |
We need
the noun form here since we need a main subject. |
26. B |
is
designed |
We need
the singular form of the verb here to agree with the singular main
subject Project. |
27. B |
composed |
We need
passive voice here. Notice that if we use the -ing form, we would need
an object. |
28. D |
its |
We need
the singular pronoun to agree with its singular referent seed. |
29. B |
economic |
We need
the adjective form here to be parallel with the adjectives cultural
and social. All three adjectives modify the noun forces. |
30. A |
living |
Simple
sentence: bacteria play role
living is the -ing form from an adjective clause:
bacteria which live
in the soil...
If we do not change lived, we would have two verbs in the
sentence.
|
31. B |
that are
called
or
which are called
or
called
|
We have a
double verb in this sentence. We should make the extra verb part of an
adjective clause. |
32. D |
hot |
We need an
adjective here. heat is a noun. |
33. C |
campaigning |
We need
the object of the preposition after. campaign is a noun,
but we need to use the gerund form here because we need to show that
Carrie Chapman Catt was doing the action. |
34. B |
conducts |
We need a
subordinate verb here. conducting is not a verb. |
35. C |
with |
This is a
preposition combination question--we simply have to memorize the
combinations. |
36. D |
farming |
We need to
use the -ing form here to show that the family is doing the action of farming.
Incidentally, this is one of the funniest mistakes on the TOEFL--if we
use the -ed form, that means that the family received the action. In
other words, the family was planted in the soil, like corn or wheat!! |
37. A |
invention |
inventor
is a person; invention is a thing. We are talking about the thing
here. |
38. C |
sewing
machines |
machine
is a singular count noun with no determiner. Therefore, it is WRONG,
WRONG, WRONG!! |
39. A |
Nitrogen |
We do not
use the with elements. |
40. B |
as a small |
stream
is a singular count noun with no determiner. Therefore, it is WRONG,
WRONG, WRONG!! The determiner always goes at the beginning of the noun
phrase. In this case we should put the determiner before the adjective small. |