【题目】根据短文内容，选择最佳答案。
My name is Lisa. Because of my job, I often went to the United States. I often felt worried during my trip because I didn't speak English well. So I decided to learn English.
I went to Mrs Brown's English class. Before I came to the class, I always walked away when I met any Americans. But now I try to talk to Americans in English. And I like going to supermarkets, cafes and restaurants to talk with local people.
I learn English in four ways. First , I listen to the teacher carefully and keep speaking in class. Second, I do my homework after I get home. I learn at least five words every day. Third, I listen to American radio and watch American TV programs. Finally, I surf the Internet to talk with different people in English.
To learn English well, I think you must learn to open your mouth. For me that is the key to opening the door of learning English.
（1）Where did Lisa often visit?
A.Japan
B.France
C.Australia
D.America
（2）Why did Lisa feel worried during the trip to the United States?
A.Because she didn't like travelling by plane.
B.Because she didn't speak English well.
C.Because she didn't like to meet different people.
D.Because she couldn't sleep well.
（3）What's the key to opening the door of studying English for Lisa?
A.Listening to American radio and watch American TV.
B.Learning to talk to Americans in English.
C.Listening carefully in class.
D.Learning at least five words every day.
（4）Which of the following is NOT TRUE?
A.Lisa liked to talk to Americans in English better than before.
B.Lisa tells us five ways of learning English.
C.Mrs Brown's class was a great help to Lisa.
D.Lisa speaks a lot in Mrs Brown's class.