Choose A, B, C, or D that best completes the sentence.
Smoking has ____ effects on our health.
A.harm
B.harmful
C.harmfully
D.harmlessly

Choose A, B, C, or D that best completes the sentence.
Something went ____ with my computer so I could not complete my work.
A.wrong
B.wrongly
C.wrongness
D.wrongfulness

Choose A, B, C, or D that best completes the sentence.
He looked at the picture ___ without saying a word.
A.attentive
B.attention
C.attentively
D.attentiveness

Why don’t you explain_______
A.you for some money?
B.it to her?
C.with your results?
D.of not having any free time?

Choose A, B, C, or D that best completes the sentence.
We find it ____ to do housework.
A.bore
B.bored
C.boring
D.boringly

A clean, safe form of energy which comes from the sun is...............
A.lunar energy
B.solar energy
C.fossil fuel
D.tidal energy

Because it is thinly spread, solar energy is still difficult and................. to collect.
A.cheap
B.expensive
C.ready
D.inexpensive

Choose A, B, C, or D that best completes the sentence.
The fire-prevention system is ____ by any small increase in temperature.
A.active
B.activated
C.acted
D.acting

Choose A, B, C, or D that best completes the sentence.
A laser beam consists of a ____ of pure light.
A.concentrate
B.concentration
C.concentrative
D.concentrating

Choose A, B, C, or D that best completes the sentence.
To ____ in a job interview, you should arrive on time, be well-dressed, and keep ____ when answering the questions.
A.successfully /calm
B.successful /calmness
C.success /calmly
D.succeed /calm