问题
选择题
She is so optimistic that her cheerful spirits and bubbling laughter _____ the whole class.
A．effect
B．effected
C．infected
D．infect
答案
答案：D
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She is so optimistic that her cheerful spirits and bubbling laughter _____ the whole class.
A．effect
B．effected
C．infected
D．infect
答案：D