1:Mary does her homework at 6:30.(改为否定句)Mary_____,_____,____
1:Mary does her homework at 6:30.(改为否定句)Mary_____,_____,_____,______at 6:30
2:The old man usually exercise at 5:30 in the .morning(对划线部分提问。划线部分为exercise)______ ______ the old man usually _____ at 5:30 in the morning
家庭作业求学霸指点,第一个对的采纳