单项选择题

The idea of traveling through _______ space to other planets interests many people today.

A．a.
B．the
C．\
D．one
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单项选择题
Samuel has curly hair but his twin sister's is quite ______.
A．even
B．straight
C．uneven
D．regular
单项选择题
Tim, the footballer, always scores _______ at football matches, but he feels frustrated at each examination.
A．points
B．games
C．goals
D．targets
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