A knock on the door!Who --it be?-A knock on the door!Who __it be?-Maybe the milkman.A.can B.mustc.mayD.will

Listen!I hear someone knocking at the door.Listen!_____ ______ a knock on the door. knock on the door 同义句 Who is_______(knock)on the door? Who is_______(knock)on the door? A knock on the door!Who --it be?-A knock on the door!Who __it be?-Maybe the milkman.A.can B.mustc.mayD.will knock at the door敲门应该是knock at the door,有时也看到有用knock on the door的,还有是不是可以直接说“knock the door呢? knock at the door 和 knock on the door有什么区别吗详解,谢 knock at the door和knock on the door到底有什么区别? knock at a door和knock on a door的区别是什么 Listen,l hear someone knocking at the door的同义句Listen,____ _____ a knock on the door 1.S_____ there was a knock on the door.结合句意根据首字母填空 there was a knock on the door.急…………………… There came a knock on the door请问这句话的正常语序 there came a knock on the door这个句子有错吗? ____ I was falling asleep,there was a loud knock on the door.(when/while) can you hear someone _____(knock) on the door now Would you please ____________(not knock)on the door? you must ____(knock)on the door before you enter