_____ hard before, Tom is afraid of failing in the exam. A. Having been worked B. Not to have worked C. Having never worked D. Never have worked为什么选C而不可以用Never having worked

有两个空不会填,请帮个忙!1.If he _____ (be) here before 10 o'clock,I shall see him.2.you never _____(pass)this test if you don't work hard. You can't pass the exam _____ you work hard haven't read _____ (so,such) wonderful a film before if条件句1.You never _____(pass) this test if you don't work hard.2.If he _____(be) here before 10o'clock,I shall see him.3.If he _____(enjoy) concerts,why doesn't he come with us? 英语翻译before the exam,he didn't work hard and ___ up ___it.up是怎么回事? You don't smoke,don't you? _____.I have never smoked a cigarette before. Can you play foootball? _____.It's hard. A.Yes ,I can. B.No,Ican't. 一道反意疑问句You must work hard,_____ you?为什么不是mustn't If you have worked hard(),you won't have to sit up all night before the exams Don't you remember _____?A.seeing the man before B.to seeing the man beforeC.saw the man before D.to have seen the man before I haven't read _____ (so,such) wonderful a film before Don't be _____,try again.He was very n_____ before the plane took off 1、The bag is ____ heavy that I can't carry it by myself.A.very B.too C.quite D.so2.Tell the boy _____ his hands before meals.A.not to wash B.not wash C.to wash D.wash3.Who likes eating the candies?______.They are too hard.A.No one B.Anyone C.Someon Millie didn't walk her dog because it rained hard yesterday.Millie didn't _____ her dog ____ a_____because it rained hard yesterday. the boy doesn't do well in english.what _____,hethe boy doesn't do well in english.what _____,he doesn't work hard.：more为什么 She is very busy before 12:00 同义句 She isn't very _____ _____ 12:00. Don't worry.I will come back before long.改同意句Don't worry.I will_____ _____.怎么填空 You should work ________(hard) than before.