The Internet, as well as newspapers and magazines, ________ a more and more importantpart in our daily life.[ ]

By the time of last year, she ______ the piano for five years.

Finishing their shopping at the mall, the couple discovered that their new car _______.

With economy getting worse，we have reached the point________we have to cut down our daily expenses.

It’s reported that a subway system will be _____ use in 2020 in Taiyuan.