一、单句改错
1.Do you know that of them will be our new headmaster?
答案that→which
2.I asked him that he had done it all himself or whether someone had helped him.
答案that→whether
3.I am very interested in what he has improved his English in such a short time.
答案what→how
4.Why we need is more money.
答案Why→What
5.The report what he was going to resign was false.
答案what→that
6.There is no doubt whether Mr Smith will sign the contract with us.
答案whether→that
