Question

When I walked past his house, I heard him ______

When I walked past his house, I heard him _______. A．to sing B．sang C．sings D．singing

Answer 1

D

试题分析：此题考查固定举行结构hear sb do sth和hear sb doing sth之间的区别，前者表示听到某人经常做某事或做过某事，后者表示听到某人正在做某事。根据语境提供的信息可知我听到他正在唱歌，故选D。 点评：hear是活性动词后跟动词不定式和动名词的含义是不一样的，类似的动词还有forget，stop等。