单项选择题

Tony will return the book to you ______ he finishes reading it.

A． until
B． while
C． when
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单项选择题
Jim felt ______when he heard the good news.
A． pleased
B． well
C． happily
单项选择题
Of all the students in class one, Peter is ______.
A． tall
B． the tallest
C． taller
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