1 D
2 A
3 B
4 D
5 B
II
1 It is a day that is meant to raise awareness and appreciation about......
2 It was on April 22, 1970
3 Yes, it did
4 C
5 D
Part III
1 Thousands of tons of rubbish have been thrown into the forest
2 He invited me to go to the movie with him
3 He wishes he knew enough English vocabulary.....
4 The test was so difficult that many students couldn't do it
5 WE had a 4-day trip to the countyside