_______ the house is empty, memories flood my mind of a time when it was filled with life.
-----Tomorrow is Mary’s birthday.Are you going to her party? -----___.I like cake very much.
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.