Where did the man say he put his glasses？
A. In the cupboard.
B. On the desk.
C. He couldn't remember exactly.
In the text, the tallest tower that has been completed in the world is ______.
A. the Petronas Twin Towers
B. the Sears Tower
C. Jin Mao Tower
D. Burj Dubai
____
A. 数据抽象
B. 封装
C. 多态
D. 继承
Please don't touch anything unless
A. ask to
B. to ask
C. asked to
D. asking to
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