i heard him ()in the next room a few minutes ago.

题目

i heard him ()in the next room a few minutes ago.
sing;to sing;singing;sang,应该选哪个?有ago是不是应该选一般过去时?

答案

这里的括号填的跟ago没关系,heard就是过去式.

这里是固定搭配：
Hear/see sb. do sth. 看见或听见某人做过或经常做
Hear/see sb. doing sth. 看见或听见某人正在做
Hear/see sb./sth. done 看见或听见某人被做,如 saw a thief caught yesterday

所以直接填sing