问题描述：
请教几道高中英语语法题,说明理由?
1,Would you like a cup of coffee_C___shall we get down to business right away?
A,and B,then C,or D,otherwise
2,They want to know _B___do to help us.
A,what can they
B,what they can
C,how they can
D,how can they
1,Would you like a cup of coffee_C___shall we get down to business right away?
A,and B,then C,or D,otherwise
2,They want to know _B___do to help us.
A,what can they
B,what they can
C,how they can
D,how can they
问题解答：
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