Betty is a specially trained dog. She fills my life with p__________.

 people are pretty ____________(放松) about time in Colombia.

China is getting richer and stronger in the new __________（世纪）.

 Excellent teachers are usually _______ (感兴趣) in their students.

单词拼写

We’ll be able to finish the project _________（容易）.

 He had to make a living by himself after his father’s ___________.

 Susan will not arrive at the airport on time ______________ she hurries up.

 Could you _______me with information about student exchange programs?

We tried our best to solve the problem.Finally we________________.

Let’s open the windows and have some ____________ air in here.