题目

国民党军队的主力基本被消灭是在 A．三大战役之后 B．渡江战役后         C．南京解放之后       D．全国大陆解放后 答案：A选择already/yet填空。 ① He has not begun to work.(2) - Have you had your lunch?—No,not .③I have finished my homework.