完成句子。 (1)那只母袋鼠正在跳 the mother_____is________. (2)我妹妹正在画画 my sister is __________ ________. (3)那两只狮子不是在睡觉,它们在打架 the two lions are not ______. They’re__________ (4)John的母亲正在接电话 John’s mother______ ______ ________ ________. (5)兔子不会飞,但它们会跑 Rabbits ______ _______, but they_______ ______.