听短文，在空格处填入所缺的单词。 This morning my classmates and I got up early to 1.________ the great wall. On the way to the Great Wall we saw many tall buildings on both 2. _______ of the highway. About two hours 3. ________, we arrived at the Great Wall. When the Great Wall appeared in 4. _________ of us, we couldn't help crying, 'What a wonderful view it is! How great it is!' When we walked on the Great wall, we felt very proud (骄 傲,自豪的) because it is the 5. _________ wall in the world.