单选题
That man must have the strength of a hippopotamus, or he never______that great beast.
A、
could have vanquished
B、
would vanquish
C、
should have vanquished
D、
had vanquished
【正确答案】
A
【答案解析】
[解析] 28．此句中的or意为“否则”，此句为假设条件被隐蔽的虚拟句。
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