1．From my point of view, running is a good way to relieve the pressure (压力) of learning.
2．He pretended (假装) to be reading an important document when the boss came in.
3．I’m not fit for the job, for I have no previous (先前的) experience of this kind of work.
4．It is quite convenient to shop online and you can also buy a wide variety of goods at a low price (价格)．
5．I agree with it in principle (原则，原理) but I doubt if it will happen in practice.
6．With the development of economy, there ar e more and more private (私有的，个人的) cars and traffic jams are getting heavier and heavier.
7．When first introduced to the market, these products (产品) enjoyed great success.
8．The professor (教授) always urges us that everything should be put in place before we leave the lab.
9．In recent years many football clubs have been run as business to make a profit (利润)．
10．The problem with their plan is that they didn’t fully consider the expenses of the project (工程，项目)．
11．I wrote a letter of complaint, and the manager has promised (许诺，答应) to look into the matter.
12．More importantly, the subway network is bound to promote (促进) the development of local economy.
13．(2017·全国卷Ⅲ)Sarah wants to prove (证明) that she has brains as well as beauty.
14．The Tshirt is made of high quality pure (纯的) cotton.
15．The purpose (目的，目标) of the activity was to learn about the hi story of the famous universities.
