______ (52)
A.shortcut
B.high-speed
C.dangerous
D.low-cost

The word “absurd” in the passage is closet in meaning to
A.Normal
B.Ridiculous
C.Interesting
D.Frequent

According to the passage, which of the following is not true?
A.The meaning of the “blue moon” changed over the years
B.The phrase “once in a blue moon” could refer to two people eating dinner together
C.The lunar calendar was invested by Julius Caesar and Augustus Caesar
D.The Roman calendar is still in use today.

Which of the following can be inferred from the passage?
A.The phrase “blue moon” refers to the frequency of events.
B.The usage of “blue moon” ha not changed.
C.The Roman calendar matches the natural phrases of the moon.
D.Two full moons often occur in one month.

Which is the best place for the following sentence? “In fact, this phrase has taken on other meanings over the years as well.”
A.[1]
B.[2]
C.[3]
D.[4]

______(37)
A.call
B.called
C.calling
D.to call

______(38)
A.all
B.most
C.few
D.a little

In the 1860s Louis Pasteur discovered that bacteria in air caused the perishable food to go bad.
A.The 1860s
B.Bacteria
C.The perishable
D.Bad

Lewis and Clack had been gone for such long on their expedition that many thought they were dead.
A.Been gone
B.Such
C.Many
D.They

___________________(36)
A.implanting
B.transplanting
C.growing
D.cultivating