同义句改写。 1. Even if you are with your friends, it is better not to speak loudly in public places. Even if you are with your friends,you your voice in public places. 2. Would you mind my opening the window? Would you mind the window? 3. I will do it at once. I will do it ___ ___ . 4. They will be here very soon. They will be here ___ ___ ___ ． 5. Please obey the rules. Please don't ___ ___ ___ ．