Question

Listen! Can you hear them _______ in the next room?

A．practising to sing	B．practising singing
C．practise singing	D．to practise sing

Answer 1

B

试题分析：句意：听！你能听到他们在隔壁的教室练习唱歌吗？hear sb doing sth听见某人正在做某事；practise后面接动名词形式，故选择B。