I'm s____ you must be happy at Jim's birthday party.横线上应该填什么?

I'm s____ you must be happy at Jim's birthday party.横线上应该填什么? 几道英语练习题1.-Mr Hu must be in the teachers' room,______?-Yes,I saw him go into the room just now.A.mustn't heB.is heC.isn't heD.needn't he2.-Do you still have a headache,Billy?-No,it's____.I'm all right now,mum.A.dropped B.run C.left D.gon I'm s____ ,but i can't go shopping with you this afternoon When you meet some bad,you must s____ clam. I’m very sorry I’m late. I ___________ and told you I was coming.A. ought to phone you B. must phone you C. ought to have phoned you D. must have phoned you I hope I can see you s____. I'm s____ you all like it very much.下划线处填写什么 I am s____ you like some subjects I can't stop smoking .For your health ,I'm afraid you( ).A can B mustn't C must What are you going to do this Sunday?I am going s____ with my friends.I am going s____ with my friends.It must be fun to walk in shopping malls. You must be the reason i'm alive you must be elena,i'm damon 铃声择优选择 You must be Elena,I'm Damon 铃声 求个you must be elena,i'm damon短信铃声! 求You must be Elena,I'm Damon铃声. 求个you must be elena,i'm damon短信铃声! Can you s__ the window I'm a little cold They gave me so much s____.So I can succeed. I'm not s____ where I'm going to work.