---Do you think it is _______ useful book?---Yes. I got _______ “A” in my writing exam last week after I read the book.
— A new baby came to the earth ______ a sunny winter morning.— How nice.
There is going to be a wonderful party _______ the evening of October 1st, 2009.
Lin Lin often practices English _______ chatting with her American friend.
You Can find a way to reach your goals when you are proud__________ yourself and stand tall like a sunflower.A.on B.from C.of
The young men walked ______ the forest and came to a big river at last.