What is the greatest speed of tsunami travelling across the deep ocean?

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.

The examination was not very difficult, but it was_____________ long.

Mark the letter A, B, C or Don your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.

My grandmother is very old. She can’t do the chores herself.

Our industrial output_____________from $2 million in 2002 to $4 million this year.

We had a lot of fun_____________at the picnic.

We_____________to take a taxi. Otherwise we’ll be late for the meeting.

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.

Studying all night is good for neither your grades nor your health.

Sorry for being late. I was_____________in the traffic for more than an hour.

Mark the letter A, B, c, or D on your answer sheet to indicate the word or phrase that is CLOSEST in meaning to the underlined part in each of the following questions.

We had never experienced such discourtesy towards the elderly as it occurred at this center

Some film stars_____________difficult to work with.

I could not see what she was doing. It was so dark there.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 38 to 42.

Tsunami is a Japanese word which means harbour wave and is used as the scientific term for seismic sea wave generated by an undersea earthquake or possibly an undersea landside or volcanic eruption, when the ocean floor is tilted or offset during an earthquake, a set of waves is created similar to the concentric waves generated by an object dropped into the water. Most tsunamis originate along the Ring of Fire, a zone of volcanoes and seismic activity, 32,500 km long that encircles the Pacific Ocean. Since 1819, about 40 tsunamis have struck the Hawaiian Islands.

A tsunami can have wavelengths, or widths, of 100 to 200 km, and may travel hundreds of kilometers across the deep ocean, reaching speeds of about 725 to 800 kilometres an hour. Upon entering shallow coastal waters, the wave, which may have been only about half a metre high out at sea, suddenly grows rapidly. When the wave reaches the shore, it maybe 15 m high or more. Tsunamis have tremendous energy because of the great volume of water affected. They are capable of obliterating coastal settlements.

Tsunamis should nót be confused with storm surges, which are domes of water that rise underneath hurricanes or cyclones and cause extensive coastal flooding when the storms reach land. Storm surges are particularly devastating if they occur at high tide. A cyclone and accompanying storm surge skilled an estimated 500,000 people in Bangladesh in 1970. The tsunami which struck south and southeast Asia in late 2004 killed over 200 thousand people.

What does the word “concentric” in paragraph 1 mean?