Do you know how a heart can be brave

----- will he be back home ,do you know?A How long B How often C How soon D How far how do you know How do you know? Then how do you know he is happy?急用! Do you know _____?(怎么填)-Do you know _____?-He wallks.A.how does he get to schoolB.how he gets to schoolC.When does he get to schoolD.When he gets to school说明原因! Do you know ___?I want him to work in my company.Do you know ( I want him to work in my company.A.how he is old B.how is he old C.how old is he D.how old he is 为什么选D是正确的?类似 Do you know 或Does your mother know ( D.what you are doi do you know the man under the tree?sorry,l don't know() a.how is he b.what is he c.who he isd.bother Do you know how to make a sandwich How do you make the sandwich ,do you know?是不是病句 How do I know you? -Tom didn’t go to school?A. Do you know how B. Why do you know C. How you know why D. Do you know why Do you know how long( )English.A has he learned B he has learned C has he begun to learn D he has begun to learn Excuse me,do you know how __________(fly) a kite? Do you know how -----(wright)a Lost and Found notice? Do you know how a heart can be brave How does he go to school ?Do you know?合并为一句 Do you know ____ _____ to school? 为什么是Do you know how old he is而不是he is? Do you know how often he ____（锻炼）?He is so strong.exercise用加单三吗 do you know ___(he)?