Some rules are almost the same _______in the world, but rules of etiquette can be different from place to place.

Look! There are some birds ______ in the sky. They are very beautiful.

In the world, there are over 2000 varieties of snakes, _____ are harmless to humans.

In the world, there are over 2000 varieties of snakes, ______ are harmless to humans.

_________is a great pity that there are some disagreements in the school board meeting.

Both companies are______ the same business.

As a rule, the workers are paid _____.

As a rule, the workers are paid ______.

Some people fear that ________ air pollution may bring about changes in _______ weather around the world.

The two things are the same in outward form but different ________.