QQ, you can chat with your friends, makes communication easy.
We climbed higher ______ we might see the scenes better.
John seemed puzzled about ______ the question meant.
―What do you think of your new Pad? ―Good. I don’t think I can find a ______ one.
—Shall we go for a drink at one o'clock this afternoon? —________.Will two o'clock be OK?
My favorite writer is Mo Yan, some of ________ novels have a surprising ending.