Gấp ạ giúp em với Tiếng anh 11

1. I am sure that the cat is in the house somewhere. (must) -I am sure the cat must be in the house somewhere. 2. It's necessary for him to bring his passport. (have) - He has 3. I'm sure you are very tired after working so hard. (must) 4. I think you should give up smoking immediately ...