Thegreatpianistperformedinthecentreofstage,

问题详情：

The great pianist performed in the centre of stage, _______ command the keys were producing wonderful tunes.

A．at whom                                                   B．at whose

C．in whom                                                   D．in whose

【回答】

B

【详解】

考查非限定*定语从句。句意：这位伟大的钢琴家在舞台*演奏，在他的指挥下，琴键走出美妙的乐曲。at sb's command 是固定搭配，表示“在某人的指挥之下”，用whose在从句中作定语，故B项正确。

知识点：介词

题型：选择题