50. If you need physical________(力量), you should wear red clothes.

B)根据句子意思，用括号中所给单词的适当形式填空。

49. The naughty boy didn’t _______(认识到) what mistakes he made until I told him.

48. Which TV set should I choose? It’s hard for me to make a ________(决定) .

47. Usually orange represents joy, you can ________(在…上刷油漆) your son’s bedroom with this colour.

A) 根据括号中所给的汉语写出单词，使句子意思完整正确。

46. Look !There is a beautiful _______(彩虹) in the sky. It’s colourful.