A.definition
B.necessity
C.humidity
D.incredible

A.informative
B.discovery
C.magazine
D.deliver

A.begin
B.passage
C.kingdom
D.mountain

__________ (7)
A.connected
B.combined
C.mixed
D.linked

__________ (10)
A.shared
B.open
C.common
D.public

I. Choose A, B, C, or D that best completes the sentence.
Without our ____ they would not have got accomplishment.
A.contribute
B.contribution
C.contributors
D.contributive

I. Choose A, B, C, or D that best completes the sentence.
Nowadays people become aware ____ secondhand smoke.
A.of
B.for
C.up
D.on

I. Choose A, B, C, or D that best completes the sentence.
The search ____ alternative sources ____ energy has led in various directions.
A.on / with
B.at / through
C.for / of
D.in / off

I. Choose A, B, C, or D that best completes the sentence.
There is nothing wrong with the photocopier. It just needs____ .
A.to service
B.service
C.servicing
D.serviced

I. Choose A, B, C, or D that best completes the sentence.
Curtis delayed ____ the airplane because the weather was bad.
A.catch
B.to catch
C.caught
D.catching