Question

【題目】Mary _______ the song at a party.

A. heard sing B. was heard sing

C. heard to sing D. was heard to sing

Answer 1

【答案】D

【解析】句意：有人聽到瑪麗在晚會上唱這首歌�？疾楸粍诱Z態(tài)。主語Mary是動詞hear的受動者，需用被動語態(tài)，即be+過去分詞結(jié)構(gòu)，可排除AC選項。hear sb. do sth.聽見某人做某事，在被動結(jié)構(gòu)中需將省略的不定式符號to恢復(fù)，根據(jù)句意結(jié)構(gòu)，可知選D。