The earthworm is a worm _______in moist, warm soil in many geographical areas.

Our flight from Amsterdam to London was delayed ………the heavy fog.

It is_______ to translate each lesson into your language. This is not a good way to study English.

The soldier was punished for_______ to obey his commanding officer's order.

_______the rise in unemployment, people still seem to be spending more

_______for bamboo seeds to grow into plants that can be used for commercial purposes.

There's somebody behind US. I think we_______.

The cat was afraid when it saw its_______ in the mirror.

 The doctors say it may take him a long time to get_______ the shock.

Do you think there……..less conflict in the world if all people_______ the same language?

I met some old friends_______ I was on holiday in Malaysia.

Before entering the room you'd better_______ your shoes.

The_______ of the air has certainly brought great benefits to man.

Fish farming is only one of the many recent experiments man has begun in the endless battle to feed himself. It is not as easy as it (16) ________. One doesn't simply find a pond, stock it with fish and wait for them to multiply. I knew one amateur who did just this. He looked on his pond as a fishing hole (17) ________his friends. One morning he awoke to find its surface covered with dead fish. They had died quite naturally - from suffocation.

Commercially (18) ________fresh-water fish need just that - and plenty of it. A good stream feeding the pond is one way to (19) ________that fish will stay healthy. Not only does it supply life-giving oxygen, it also helps to clear away the fish's own (20) ________matter. With the oceans being overfished in recent decades, fish farming may soon take over there too.

It is often considered that the schoolyard is where bullies go to make other kids a miserable school life, but a new study suggests that classrooms are another popular places. The study, presented recently at the American Public Health Association's yearly meeting in Philadelphia, is based on the results of the research from more than 10,000 middle school students who answered questions online.

Of those researched, 43% said they'd been physically bullied within the last month. A bit more than half said they had been laughed at in an unfriendly way, and half reported being called hurtful names. About one third said groups had excluded them to hurt their feelings. 28% said their belongings had been taken or broken; 21% said someone had threatened to hurt them. According to the results, two-thirds of the students said they had been bullied in more than one way over the previous month.

The study authors mentioned that 8% of the students who answered said they had missed school at least once during the school year because of fear of being bullied. 25% said they had taken other actions, such as missing recess, not going to the bathroom or lunch, missing classes, or staying away from some area of the school to escape from experiencing a bully. Bullies did too much to the school life.

People enjoy living in large cities. But cities have problems. One problem is that they frequently grow very rapidly. Transportation (26) _______ complicated. There are a lot of cars, buses and bicycles. As a result, people are trying to improve the big cities, and they are also planning for new cities. Plan A is a large city (27) _______ smaller cities around it. There is an open land with trees, fields, and lakes between the large city and smaller cities. Each small city is (28) _______. It has offices, schools, hospitals, and places of entertainment. In Plan B the cities are (29) _______by a road. In Plan C, the cities are in rings around the central city and all of them are connected to each other. The goal of all these plans is to limit the (30) _______of the large city.