China's success in manned-spacecraft travel shows ________ our country has become one of the greatest powers in space research.
—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?