第14期
( ) 1. A. I think the computer is very useful.
B. I think the computer has changed our life.
C. I think the computer is very expensive.
( ) 2. A. I use the computer every week because of my work.
B. I use the computer every day because of my work.
C. I use the computer every day because of my study.
( ) 3. A. Alexander Graham Bell invented lots of inventions.
B. Alexander Graham Bell was a great inventor.
C. Alexander Graham Bell wanted to be a great inventor.
