The child _______ on the chair and eating a cake.A.siting B.sitting C.ia sitting D.is sat
问题描述：
The child _______ on the chair and eating a cake.A.siting B.sitting C.ia sitting D.is sat
答
填 A/B,使得句子没有谓语,错； 填D sat不能和eating构成并列； 故C!