My computer isn't working. It______.
A) need repairing
B) needs repairing
C) need to repair
D) need to be repaired
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Anxious patients are encouraged to relax by listening to music and （）pictures
A. paint
B. to paint
C. painting
D. paints
北京的出租车司机和宾馆服务员差不多都会说几句英语，其中部分人甚至会两门外语，外国朋友到北京旅游几乎不必担心语言交流的问题。 根据这段话，外国朋友来北京旅游可以怎样交流？
A. 住宾馆
B. 说外语
C. 用中文
D. 坐出租车
It was hard to say why the man deserved such shabby treatment.
A. old
B. unforgettable
C. unfair
D. funny
胆色素是体内的代谢废物，以下物质属于胆色素的是
A. 胆固醇
B. 胆汁酸
C. 胆酸
D. 胆红素和胆绿素
E. 胆汁
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