14. At the age of 47, the musician stopped giving concerts and _________ himself to teaching.(A)devo
15. Research has shown that _________ school facilities have a negative impact on student learning.(
16. _________ by the famous singer, the song quickly became a hit.(A)Be written (B) Written (C) It w
17. _________ is a fact that everyone knows.(A)Which the earth is round (B) The earth be round(C) Be
19. _________ he was very tired, the teacher let him go home early.(A)He saw that (B) That he saw (C
20. His parents looked _________ when they saw him wearing a dress.(A)confusing (B) to confuse (C) b
21. He yelled _________ so others could hear him.(A)so loud he could (B) as loudly as he could(C) lo
22. Two days _________ before he could get up and walk around.(A)have been passing (B) had passed(C)
23. The cake you brought was so delicious. I would never forget _________ taste.(A)it had (B) it’s (
24. Mr. Sanders has a lot of friends, but _________ willing to help him when he is in trouble.(A)non
25.The students were told _________ go out until the teacher came back.(A)they not (B) do not (C) no
26. _________ proposed the great idea.(A)He was the one that (B) Who was he that(C) It was he that (
28. _________ they came to class late, they were asked to stay after school to do some extra work.(A
29. He decided to walk to school every day _________ he could save some money.(A)so that (B) by that
30. Children _________ in big cities may not appreciate the company of animals.(A)live (B) living(C)
第一篇：Wind energy is a clean fuel source. Wind energy doesn’t pollute the air like power plants that r