初中英语宾语从句如何改成简单句?

例: I don't know what I shall do next
I don't know ( ) ( ) ( ) ( ).

  

    He didn't decide which bike he would buy.
He didn't decide ( ) ( ) ( ) ( ) .

第1个回答  2013-09-18
I don't know what I shall do next
I don't know (I ) (should ) (do ) (next ).

He didn't decide which bike he would buy.
He didn't decide (he ) (would ) (buy ) (bike ) .
第2个回答  2013-09-18
what to do next

which one to buy
第3个回答  2013-09-18
I don't know what to do next
He didn't decide which bike to buy .
第4个回答  2013-09-18
第一句:I don't know to do what next.
第二句:He didn't decide to buy which bike.