"You should speak English as possible ."Mr Wu always says.----- Mr.Wu always says that we should speak English as possible."I prefer math to physice."he said.----- He said he prefer math to physics."Are you interested in history and geography?"she asked them.---- She asked them whether they are intersted in history and geography.She asked where I had been for my vacation.----- "Where have you been for your vacation?" She asked.The doctor told to me that I had caught a cold.------ "You have caught a cold." The doctor told me.