eg.
Tell him which class you are in .
Do you know what he likes?
注：
(1)主、從句時(shí)態(tài)一致：
主句謂語過去時(shí)，從句相應(yīng)過去時(shí);
He answered that he was listening to me.
主句謂語現(xiàn)在時(shí)，從句時(shí)態(tài)任所需;
eg. He says (that) he will leave a message on my desk.
They know (that) he is working hard.
具體過去永不變，真理格言現(xiàn)在時(shí);
eg.He told me that he was born in 1980.
Father told me that practice makes perfect .
(2)否定前移，及完成反意問句
在think / believe / suppose / guess / imagine / expect等動(dòng)詞后跟賓語從句否定式時(shí)，應(yīng)轉(zhuǎn)移到主句上去，完成反意問句時(shí)，應(yīng)與從句主、謂保持一致。(注: 否定前移的條件是，主句主語是第一人稱)
eg. I don't think you are right ,are you ?
I don't believe they have finished their work yet,have they ?
(3)運(yùn)用虛擬語氣的情況
在表示：
建議 suggest 、advise、propose;
要求demand 、desire、request;
決定 decide;
命令 order、command、require;
堅(jiān)決主張 insist;
等動(dòng)詞后跟賓語從句，用(should)+v.(虛擬語氣)
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