I have to _____ for the math test. [ ]
A. study
B. studying
C. learning
D. studied
答案:A
----What can I do with so much money?
----If I _______ you, I _______ give it away to charity.
A.am, will
B.am, would
C.were, would
D.was, would
LD型电动单梁起重机主要由()、电动葫芦、大车运行机构、电气设备四大部分组成。
A、桥梁
B、大梁
C、桥架
D、过桥