Ⅰ.单句语法填空
1．The contract will come into effect as soon as it is signed (sign).
2．When faced (face)with a difficulty，I usually choose to refer to relevant learning materials or web pages.
3．There are many books on his shelf，ranging (range)from Chinese literature to foreign literature.
4．Just in front of our house stands (stand)a tall tree with a history of 1，000 years，which is protected by the government now.
5．Nanjing is a city situated (situate)in the heartland of the lower Yangtze River region in China.
6．She left school five years ago and has worked (work)as a nurse ever since.
7．Neither Alice nor her friends are (be)going to the park this weekend.
8．Follow the doctor's advice after operation and you will pick up little by little.
9．Parents should have control over what their children are doing online.
10．While red is a symbol of warmth，it can sometimes make people feel uneasy or even frightened.
