题目内容：

the man is said to ___ from ___ shortly after he fell into the water.
A.be rescued,drowning
B.have been rescued,drowning
C.be rescued,drowned
D.have been rescued,drowned

优质解答

B.to后面的动作发生在“据说”之前,已经完成了,要用完成时.介词后要用动名词形式.