— I tried it out in this way, but I failed.— Why not it in some other ways?
—There is somebody at the door. Who ___________ it be? Is it the postman? —No. It can’t be him. It’s just seven o’clock. It’s too early.
Audrey Hepburn is well-known ______ her perfect skill _____a great actress.
Simon likes playing ______ chess, while her brother is interested in playing _____ guitar.
--- What did Lily say in her letter? --- She asked _________________.
--- I’m going to Hainan for vacation this Spring Festival. --- Great! ___________ happy thing it is to stay in Hainan in such cold weather!