1 Astronomy developed from the observation_____through regul

1 Astronomy developed from the observation_____through regular cycles of motion.
A going to heavenly bodies
B the heavenly bodies going
C heavenly bodies that go
D that the heavenly bodies go
2 Documentary evidence supports claims that_____the New world about AD 1000.
A reached the Vikings
B the Vikings reached
C reaching the Vikings
D the Vikings that reached
3 Authropology is a science____ anthropologists use a rigorous set of methods ands techniques to document observantions that can be checked by others.
A in that
B that in
C that
D in
错误答案为什么错了