50. There will be a talk on healthy diet for all the teachers and students on _______________(星期三) afternoon.

B) 根据句子意思，用括号中所给单词的适当形式填空。

49. As soon as he felt the slight shaking of the earth, he rushed out of his room _______________ (立即).

48. - You look slimmer and healthier than before.

　 - Yes, but I _____________ (更喜欢)sweet snacks to vegetables before.

47. The second Youth Olympic Games will be held in Nanjing in 2014. As Nanjing citizens, we are all ___________ (骄傲) of it.

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. Designers need to do further ________(试验，实验)before the cars are made in factories.