急,把兩個句子連接成含有賓語從句的複合句 1.Hewonders.whydid we buy such a cheap computer? 2.I am notsure.Hasthe film begun? 3.I am notsure.Hasthe film begun or not? 4.He has shownus.Whodoes the work best of all? 5.He hoped toknow.Doesthe tiger come from Africa?

急,把兩個句子連接成含有賓語從句的複合句 1.Hewonders.whydid we buy such a cheap computer? 2.I am notsure.Hasthe film begun? 3.I am notsure.Hasthe film begun or not? 4.He has shownus.Whodoes the work best of all? 5.He hoped toknow.Doesthe tiger come from Africa?

he wonders that why they brought such a cheap computer.
i am not sure if the film has begun
i am not sure whether the film has begun or not
he has shown us that who the work bests of all
he hoped to know that the tiger comes from Africa