（ ）someone knocks at the door,you must not open it.A.WhoeverB.WhereverC.WhateverD.Whenever要有理由.

（ ）someone knocks at the door,you must not open it.A.WhoeverB.WhereverC.WhateverD.Whenever要有理由. He ____his homework when someone knocks at the door.A.does B.is doing 14.While _____ the food with the microwave oven,I heard someone ______ at the door.A.heated; knocking B.heating; knocking C.heat; knocking D.be heated; knocks Death knocks at the door什么意思急用、 trouble knocks at your door 翻译成中文 point something at someone（同义词）a__________________ Max is so funny that he often______my books and pens when he walks past my desk.A.knocks at B.B.knocks on C.knocks over D.knocks in That old man leaves this house.改为现在完成时 My father worked in the garden.改为过去进行时Someone knocks at the door..改为现在进行时The policeman left.改为过去完成时I was typing a letter for my boss.改为一般将来时 At midnight,Peter was awakened by heavy knocks onthe door.这句中knock为什么加s It's really____for you to open the door if a stranger knocks at the door please tell me if he knocks()the door.A.at B.in C.with D.by I'm afraid that I'm out when happiness knocks at m 中文意思? Look!There is someone _____(敲）at the door. Tom!Someone （wait）for you at the school gate Someone _______（shout）at the poor old man at eight yesterday evening I think someone is _____at the doorA,knocks B.knocking C.knocked Dknock I 'm sure I see you _____ A,everywhere B,nowhere C.somewhere Opportunity seldom knocks twice. someone（ ）（knock）at the door．Go and see who it is