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Nearly________ of the surface of our planet is covered by water.

After the new equipment was introduced, they produced ______machines this year as the year before.

Son, you have ______ time to do it, so I suggest you to do it well.

--What do you think of Harry, our new classmate?
--I am not sure, but he is always asking ______ questions.

You’d better go there by train. The train ticket is  ________ the plane ticket.

– There are 60 students in my class and 45 of them use weibo very often.
– 45? That means about         of your classmates are weibo users, right?
A. half            B. two thirds              C. three quarters

Now my hometown is ___ it used to be .

Many _______ of years later, the first extremely small plants began to appear on the surface of the water.

At night we can see         stars in the universe．

The house rent is expensive. I’ve got about half the space I had three years ago and I’m paying ______ now.