You've dropped _____(an/the)"s" in the word "across'

You've dropped _____(an/the)s in the word across' ---You’ve dropped _____ “s’’ in the word “across’’.---Oh,____ letter “s’’ should be doubled like this “across’’.A.a ,a B.an ,a C.an ,the D.the ,the 为什么选C, dropped dropped 英语翻译you drank too ____ yesterday .____ _____ you`ve got a _____. Not I have dropped,but you have. We've been here （since 2011）(对划线部分提问）_____ _____ _____ you been here A:Could you lend me your fairy table book?B:_____ ______I've lost it.A:Do you know Black Smith?B:Yes.We've met_____ _____. -I thought you had _____ English.-No.It has been useful in my work.A.studied B.dropped C.failed D.passed I _____ a postcard to her.dropped made wrote received -Have you _____ learned English?-Yes,I’ve _ ___ learned a lot. You've never heard of him,____ _____?（完成反义疑问句） there is good _____ for you.I've foud your lost watch. You've never seen dinosaur eggs,have you?_____.2.You've never seen dinosaur eggs,have you?_____.How I wish to visit the dinosaur world!为什么不能用of course,I haven't you've got me! You've gone too you've missed the You've gone too