明朝皇帝木匠朱由校:We are doing our best __ the old buildings in the city.

We are doing our best __ the old buildings in the city. We are going to move our ______ to Deepwater Bay. All the students in our class are doing something for New Year Day busily. ?the heip of the Internet,we can learn what other people around the world are doing. ?the heip of the Internet,we can learn what other people around the world are doing. our plans are quite flexible so we can change them if necessare however we are forced to working our ass off on extra lessons 有错吗？ we are too tired and hungry,so our steps are getting? A) slower and slower B)more and more slowly What are you doing? Are you doing