【考例】My little sister _____ now,but she _____ some English songs.
问题描述：
【考例】My little sister _____ now,but she _____ some English songs.
A.can’t swim; can sing B.can’t to swim; can sings
C.can swims; can’t sings D.can’t swimming; can singing
答
本题选A.从你给的问句来看,can在此也只能做情态动词,情态动词后面一般接动词原形.当can表示说话者的一种意愿或用于虚拟语气时,倒是可以接一些动词的其它形式,但用在本句都不合适,故选A.