问题
选择题
The light is still ,Mr. Green _________at home now.
A．on, can be
B．down, may be
C．on, must be
D．up, can’t be
答案
答案：C
考查情态动词和介词。Be on表灯亮着，所以格林先生肯定在家。所以选C。
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The light is still ,Mr. Green _________at home now.
A．on, can be
B．down, may be
C．on, must be
D．up, can’t be
答案：C
考查情态动词和介词。Be on表灯亮着，所以格林先生肯定在家。所以选C。