施工机械按用途可以分为（）。
A.土石方机械
B.动力机械
C.起重机械
D.运输机械
参考答案：A, B, C, D
— Is this your book, Mary?
— No, it isn't. It ____ Joy [ ]
A. belongs to
B. belong to
C. must to
D. who
当你想表达自己不喜欢在炸薯条上撒胡椒粉时，应该说：[ ]
A. I don't like pepper on French fries.
B. I don't like French fries on pepper.
