从A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
例：Mr. Smith owns ____ collection of coins than anyone else I have ever met.
A．larger B．a larger C．the larger D．a large
答案是B。
21．—Do you want to take the black one or the white one?
—I’ll take _______ the black one ______ the white one. I have already had one.
A．both; and B．neither; nor C．not; but D．not only; but also
22．When I came into her room, she was ______ in her book
A．absorbed B．controlled C．exposed D．devoted
