(2012·驻马店高二检测) Here we found little snow, as most of it seemed blown off the mountain.
A. that it was
B. to be
C. to have been
D. that it had been
网友回答
A. that it was
B. to be
(答案→)C. to have been
D. that it had been
解析：
C 句意：我们在这里几乎看不到雪，因为大部分雪似乎已经被风从山上刮走了。seem后跟不定式作表语，如果不定式的动作是发生在seem之前的被动动作，应该用完成时的被动式。