1,根据句意及首写字母提示补全句子.

1,根据句意及首写字母提示补全句子.
1.Help yourself to some f_______,please.
能翻译下么.
2,句型转换.
1.I'd like to have bread for breakfast.[同义句.]
I______have bread for breakfast.
选择.
1.-Could you give me a glass of water,please.
-_____
A.Ok,thank you
B.Yes,I can
C.Certainly.Here it is.
Could和Certainly是什么意思?
说明选择的原因呃.
是有句型的么?