注意：此页面搜索的是所有试题
题目内容
（国家开放大学英语语法）
Choose sentences which are correct.
A.How to operate this computer?
B.How do you to operate this computer?
C.I have lost my key.
E.
A.How to operate this computer?
B.How do you to operate this computer?
C.I have lost my key.
E.
参考答案
