According to the passage, which of the following is NOT true about the bimetallic monetary system?
A.Either gold or silver could be used as official money.
B.Gold could be exchanged for silver at the rate of sixteen to one.
C.The monetary system was based on two matters.
D.It was established in 1792.

__________ that he was working abroad, he would willingly have helped us
A.If it had been for the fact
B.If it hadn’t been for the fact
C.Had it been for the fact
D.Had if it not been for the fact

A little farther down the street _________.
A.is the inn I used to stay at.
B.there is an inn where I used to stay in
C.the inn is the place where I used to stay
D.is there an inn in which I used to stay

The children sing loudly _________.
A.as though they had been the winners
B.though they are the winners
C.as if they were the winners
D.were they the winners

He earns _____ he used to last year.
A.twice as much as
B.twice as many as
C.as much twice as
D.as much as twice

A.manufacture
B.mature
C.pasture
D.nature

A.chooses
B.houses
C.rises
D.horses

The word “felt” is closest in meaning to __________ .
A.based
B.dropped
C.detected
D.explored

It can be inferred from the passage that the most important factor in determining how much gravitational effect one object in space has on the tides is _________ .
A.size
B.distance
C.temperature
D.density

What is the cause of spring tides?
A.Seasonal change in the weather
B.The gravitational pull of the Sun and the Moon when nearly in line with the Earth
C.The Earth's movement around the Sun
D.The triangular arrangement of the Earth, Sun, and Moon