单项选择题

Halley made a surprising, but correct prediction in the year()

A．1704
B．1705
C．1706
D．1707

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单项选择题

This passage in general is about ()

A．Halley and other scientists
B．the orbit of a comet
C．Newton and Halley
D．Halley and his discovery

单项选择题

According to the passage, which one is NOT true()

A．Newton figured out the orbit of the comet.
B．Halley figured out the orbit of the comet first.
C．Newton gave Halley some help.
D．Halley died before 1758.