----- Would you mind my using your pen？---- -_______________.
A. Yes, please
B. Of course not
C. Yes, help yourself
D. Sorry, I don ’t
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人民法院公开审理的行政案件，对涉及到商业秘密的案件，当事人申请不公开审理的，可以不公开审理（）
I hope you will spend as much time as you can ________ your English.
A. to practice
B. practice
C. practicing
D. on practice
防坠落用品与登高器具、设备要（）用
A. 酌情
B. 随意
C. 正确
The foreigners _________there, but they _________the food there at first.
A. u sed to live, didn ’t be used to
B. are used to living, didn ’t use to
C. used to live , weren ’t used to
D. used to living, usedn ’t to
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