21._______ surprised me most was ________ such a little boy of seven could play the violin so well.

　　A. That...what B. What...that C. That...which D. What...which

　　22. We gave him ________ help we could. A. which B. what C. that D. this

　　23. She is pleased with what you have given him and ________ you have told him.

　　A. that B. which C. all what D. all that

　　24. Excuse me would you please tell me ________

　　A. when the sports meet is taken place B. when is the sports meet going to be held

　　C. when is the sports meet to begin D. when the sports meet is to take place

　　25. Do you happen to know ________

　　A. what size shoes he wears B. how big shoes he wears

　　C. what is the size of his shoes D. what number shoes are his

　　26. This book will show you ________ can be used in other contexts.

　　A. how you have observed B. how what you have observed

　　C. that you have observed D. how that you have observed

　　27. Where do you think ________ A. has he gone B. has he been C. he's gone D. was he

　　28. Do you know ________ A. how many populations there are in the world

　　B. how much population there is in the world

　　C. how many the population of the world is

　　D. what the population of the world is

　　29. Would you go and see ________ outside

　　A. what to take place B. what Tom has happened C. what is happening D. what the matter had been

　　30. The subject of "What is interesting is that I do not even know him." is_______.

　　A. what B. interesting C. What is interesting D. I

　　31.________ I think he is Charles.A. Who do you think he is B. Do you think who he is

　　C. Whom do you think he is D. Do you think who he is

　　32. He didn't know which room ________.

　　A. they lived B. they lived in C. did they live D. did they live in

　　33. The little boy ate ________ his mother gave him. A. that B. which C. whatever D. no matter what

　　34. The city is no longer ________.

　　A. what it is B. that it used to be C. which it was D. what it used to be

　　35. My parents used ________ they had to get a new car for me. A. which B. that C. what D. all what

　　36.________ we go swimming every day ________ us a lot of good.

　　A. If...do B. That...do C. If...does D. That...does

　　37.________ was the idea _______ the wife thought of

　　A. What...that B. That...what C. How...why D. Why...how

　　38._______ did he tell his wife ________ he wished to do

　　A. That...what B. What...that C. Where...which D. Which...where

　　39.One of the men held the view ________ the book said was right.

　　A. what that B. that what C. that which D. which that

　　40. I have no idea ________ or not he has finished the work. A. if B. that C. whether D. which