单项选择题

My boss asked me （）I was doing with my project

A. how   
B. that  
C. who  
D. this

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单项选择题
Alice would like to go there （）but she can't afford it

A. oneself 
B. her own
C. herself  
D. she
单项选择题
Please lock up your （）in the hotel room safe

A. belonging 
B. valuables
C. a belonging
D. valuable
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