55. The rock is _____ two hundred _____, and almost no one can move it.
I bought a dress for only 10 dollars in a sale ;it was a real _______.
Great changes ___ in the city, and a lot of factories ___.
Internet, as well as the telephones, ________ an important part in our daily life.
The value of life lies not in the length of days ,but in the use we ______ them.
Wang Hong is considered ___ one of the best students in our grade.