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,otherwise2,They want to know _B___do to help us.A,what can theyB,what they c

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,otherwise2,They want to know _B___do to help us.A,what can theyB,what they c
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

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,otherwise2,They want to know _B___do to help us.A,what can theyB,what they c
1楼的答案是正确的,但是第2题的解释是有问题的,how是疑问副词,但是可以引导宾语从句,此处不能选C的原因是how they can do缺少宾语,就是说从句是不完整的

1、A。and：和、并且；B。then：然后；C。or：或者；D。otherwise：另外
句子是，你想要来杯咖啡（或者）马上谈正事。有了right away，个then就不行。
2、句子是陈述句，后面不用倒装；
他们能做什么，而不是怎样做，来帮助我们

1,选择关系，喝杯咖啡和开始工作是，两者只能选其一。故填or。2从句中用陈述句的顺序，排除A,D.主句中know缺宾语，How为疑问副词，不能作宾语，What为疑问代词，可以作宾语，故排除C，选B