问题
选择题
When we went past her house, we heard her ____ in her room.
A.dance
B.dancing
C.sing
D.singing
答案
答案:D
考查感官动词。hear sb. do sth.“听到某人做了某事”;hear sb. doing sth.“听到某人正在做某事”。句意“当我们经过她的房子时,我们听到她正在唱歌。”故选D。