单项选择题

Around the world _________ may be as many as a million earthquake in a single year.

A．yet
B．they
C．there
D．ever
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单项选择题
Robert says he bought these books in a _________.
A．disposal
B．bargain
C．reduction
D．sale
单项选择题
The king's daughter threatened to drink the _________ chemical if he refused her request.
A．deathly
B．deadly
C．fatal
D．mortal
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