－Last month Shirley advised her father to buy her brother ________MP4 as a birthday present.
－_______ useful advice it was!A.a; HowB.an; What aC.an; WhatD./; How an
网友回答
C解析MP4的第一因素是元音音素故用不定冠词an. 以what引导的感叹句的基本句型结构为what a/an +adj+可数名词单数+主语+谓语！；what+adj+可数名词的复数/不可数名词+主语+谓语！以how引导的感叹句的基本句型结构为how+adj/adv+主语+谓语！