The light is still ,Mr. Green at home now.A. on, can be B. down, may beC. on, must beD. up

发布时间：2020-08-20 15:33:14

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

网友回答

A. on, can be
B. down, may be
(答案→)C. on, must be
D. up, can’t be
解析：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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