Ⅰ. 单句填空
1.Jack pretended to have known （know） everything about it and said nothing.
2.Ever since I was a child, I have dreamed （dream） of organizing a trip to Tibet.
3.So charming is the scenery of Jiuzhaigou that it leaves a deep impression （impress） on visitors from home and abroad.
4.You don’t have to be obsessive （obsess） about your weight and eating habits.
5. Standing （stand） at the top of Mount Tai, we are able to have a good view of the beautiful scenery of the whole city.
