单项选择题

Enormous sums of money have been spent on space exploration.

A．Much
B．Large
C．Small
D．Fixed
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单项选择题
He endured great pain before he finally expired.
A．fired
B．resigned
C．died
D．retreated
单项选择题
Have you talked to her lately
A．lastly
B．finally
C．shortly
D．recently
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