1、I don't know what ____ (bring) to the party
1、I don't know what ____ (bring) to the party
2、He didn't know what he should do at that time(改为同义句)
He didn't know ____ ____ ___ at that time
3、It will be fine tomorrow .We will go climbing (改为条件状语从句)
We ___ ___ climbing ___ ____ ____ fine tomorrow