请教几道高中英语语法题,说明理由?
1,Wouldyoulikeacupofcoffee_C___shallwegetdowntobusinessrightaway?
A,andB,thenC,orD,otherwise
2,Theywanttoknow_B___dotohelpus.
A,whatcanthey
B,whattheycan
C,howtheycan
D,howcanthey
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