Xi’an is ______ most beautiful tourist city and I believe I’ll come for _______ second time.
Betty is very popular because she is easy____ .
The trip was hard at first. But it was smooth_____ .
As is known to all, the financial crisis firstly broke out in the United States,_____ the group of developed countries.
Zhang Yining has trained continuously for six hours. _____ she is tired out.
Mr Smith never does any reading in the evening;____ .