以太网对数据帧不进行编号，也不要求对方发回确认，因此以太网提供的服务是不可靠的交付，即尽最大努力的交付。（ ）
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The years having gone by, I found she had ________
A. a little white hairs
B. some white hair
C. much white hair
D. a few white hairs
Our ______ protects us from the cold.
A. dress
B. clothing
C. clothes
D. cloth
________ car broke down on the way , but luckily they knew how to fix it.
A. Tom's and Jane's
B. Tom's and Jane
C. Tom and Jane's
D. Tom and Jane
If you need an extra bed for your guest, you can use one of ________.
A. my friend
B. friend
C. my friend's
D. friends
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