---Can you tell me who the woman going to the hall is?---A famous writer ______to give us a lecture.
—Can I use your telephone?—________.
It's not enough. We need ________ more than that.
The terrible weather ________ our difficulty in building the road.
—Yesterday we learnt the fifth, ________?—I'm sorry, Mr. Li. I don't understand everything.
Wouldn't it be ________ wonderful world if all nations live in________ peace with one another?