life will continue on the earth for millions of years to come will depend onthe problem of pollution can be solved

The people in western countries celebrate_________ by making pumpkin lanterns and wearing special costumes with masks.

When chatting on the Internet by typing in English, you can ________ articles, subjects, etc. to make the sentences shorter.

A number of ______are on in the museum. Let’s see them tomorrow.

(2014·苏锡常镇四市调研)You know it’s love when all you want is that person to be happy，________you’re not part of their happiness