.He is said________a book on the history of Chinese tone bridge , but I don’t know if he has finished it. A. to have written B. to be writing C . having writing D writing
Research findings show we spend about two hours dreaming every night, no matter what we ______ during the day.
-I went to work on foot yesterday, though it ______ cats and dogs. -You ______ by bus. It was likely to get a cold.
.-How about paying a visit to Mr. Richardson, our former history teacher? -Good idea. I will e-mail him today so he ______ know ______ to expect us.
.-We need a person badly to think up such an idea. -______ the new comer have a try?
To be on the safe side, we should fill up the tank now, because we ______ run out of gas on the way.