To reduce emissions of greenhouse gases, many countries are increasing the use of natural gas, wind and other forms of _______ energy.
#17844
A
abandoned
B
original
C
alternative
D
precious
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After the new machine was introduced, the factory produced _____ in 2011 as the year before.
#18941
A
twice as many machines
B
twice many as machines
C
as twice many machines
D
as many machines twice
It is normal for students to feel_____ before the examination even though they have prepared well.
#17890
A
serious
B
anxious
C
energetic
D
awful
It is ___________ that this matter hasn’t been paid attention to.
#19117
A
attractive
B
obvious
C
cheerful
D
sensitive
Dave is always , never making a decision about anything in a hurry.
#18937
A
modest
B
curious
C
cautious
D
outgoing
It's said that __________ is going to give us a lecture.
#18793
A
a famous young American
B
an American famous young
C
a famous American young
D
a young famous American