When a pencil is partly in a glass of water, it looks as if it .
A. breaks
B. has broken
C. were broken
D. had been broken
网友回答
A. breaks
B. has broken
C. were broken
D. had been broken
解析：as if 引导的句子，有时用虚拟语气，有时不用。原则上说，若指事实或可能为事实，不用虚拟语气；若指现在，从句谓语动词用一般过去时（be 用 were）；若指过去用过去完成时，若指将来用过去将来时或用 were to do sth