51.　 He lives a simple life. He likes _____________(储蓄) money.

50. If you want to be a good teacher, you should be _____________(自信的) of yourself.

49. My uncle is an 　　(精力充沛的) businessman. He always works till midnight.

48. -How do you _____________(庆祝) Christmas Day?

　　 -By having an English party.

47. -Your white blouse _____________(与……相配) your black trousers very well.

　　 -Thank you.

46. -Who is Daniel _____________(争论) with?

　　 -His best friend, Simon.

A). 根据括号中所给的汉语写出单词，是句子意思完整正确。

45. The boy didn’t pay much _____________(注意力) to the exercises and he failed.