Once a bad _____,you will find it very hard to give it.A.is formedB.is being formed为什么答案选A,习惯不能被养成吗?

Once a bad _____,you will find it very hard to give it.A.is formedB.is being formed为什么答案选A,习惯不能被养成吗? ---_____ do you wash your clothes?---Once a week. I go hiking once a week.对划线部分提问(once)_____ _____ times _____ you go hiking? Do you think she _____ (catch) a bad cold,Doctor Tom is feeling bad. Will you please_________the doctor at once?A. take B. bring C. carry We have a piano lesson once a week.(对once a week提问）_____ _____ ______ you ______ a piano lesson? haven't seen you for a long time .we miss you _____(bad) you are a bad you are a bad you meet only once a _____ i understand what you say ,i can't agree with you.A.As B.Since C.Once D.While once a week=_____ _____ a month you should feed them once a day.i think it important 合并成一句i think ___ ___important ____ _____ _______feed them once a day 英语翻译Every class has its _____ class _____.你又错过了一次绝好的机会You miss a good chance once _____ 英语就划线部分提问.We exercise only (once) a week.How _____ _____do you exercise a week? - _____ do you take your dog for a walk every day?- Once.- _____ do you take your dog for a walk every day?- Once.A.How often B.How many times C.How long D.How much you made me feel really bad 改为被动语态I _____ _____ _____ _____ really badshe hear a boy shing lonely everyday.(被动语态)A boy _____ _____ _____ _____lonely everyday You'd better go at once,_____?A.wouldn't you B.had you C.hadn't you D.should you反意疑问句