初二上学期 英语 (要有原因)My friend didn't invite me to his birthday party. I really don't know _______. -- You should write him a letter. A. how to do B. what to do C. what does D. what doing(Q:A

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初二上学期 英语 (要有原因)My friend didn't invite me to his birthday party. I really don't know _______. -- You should write him a letter. A. how to do B. what to do C. what does D. what doing(Q:A
初二上学期 英语 (要有原因)
My friend didn't invite me to his birthday party. I really don't know _______.
-- You should write him a letter.
A. how to do B. what to do C. what does D. what doing
(Q:A、B选项怎么在做题时区分?)
答案选 B

初二上学期 英语 (要有原因)My friend didn't invite me to his birthday party. I really don't know _______. -- You should write him a letter. A. how to do B. what to do C. what does D. what doing(Q:A
第一项表达的是方式,就是语法意义上的状语;
第二项表达的是内容,就是语法意义上的宾语.
再者,how的话,应该是how to do this,因为,动词do必须有宾语,否则该答案就错误;
what to do中的what就是做do的宾语,在语法上意义完整.