Don’t all stand up at one time! ______, please.

A:Each at one time B:One by one time C:One at a time D:One for each time

That small country (at one time) (must be) prosperous, (for) it enjoyed (a high level) of civilization.（　）

A:at one time B:must be C:for D:a high level

The doctor (told) him that he (should take) this medicine (one) pill at (one) time.

A:told B:should C:one D:one

Don't all stand up at one time! ______, please.

A:Each at one time B:One by one time C:One at a time D:One for each time

Ⅲ Cloze Directions: For each blank in the following passage, there are four choices marked A, B, C and D. Choose the one that is most suitable and mark your answer by blackening the corresponding letter on the Answer Sheet. There once lived a poor tailor who had a son called Aladdin, a careless, idle boy (21) would do nothing but play all day long in the streets with little idle boys like himself. This so grieved the father that (22) died; yet, in spite of his mother’s tears and prayers, Aladdin did not mend his ways. One day, when he was playing in the streets as usual, a stranger (23) him if he was not the son of Mustapha the tailor. "I am, sir," replied Aladdin ; "but he (24) a long while ago." On this the stranger, who was a famous magician, fell on his neck and kissed him saying: "I am your uncle, and (25) you from your likeness to my brother. Go to your mother and tell her I am coming." Aladdin ran home and told his mother of his newly found uncle. "Indeed, child," she said, "your father had a (26) , but I always thought he was dead." However, she prepared supper, and told Aladdin to seek his uncle, who came laden with wine and fruit. He fell down and kissed the place where Mustapha used to sit, telling Aladdin’s mother not to be (27) at not having seen him before, as he had been out of the country for forty years. He then turned to Aladdin, and asked him his trade, at which the boy hung his head, while his mother burst into tears. On learning that Aladdin was idle and had learned (28) trade, he offered to get a shop for him and stock it with merchandise. The next (29) he bought Aladdin a fine suit of clothes and took him all over the city, showing him the sights, and brought him home at nightfall (30) his mother, who was overjoyed to see her son dressed so fine.

A:day B:time C:one D:thing

Strange things happen to time when you travel, because the earth is divided into twenty-four time zones, one hour apart. You can have days with more or fewer than twenty-four hours, and weeks with more or fewer than seven days.
If you make a five-day trip across the Atlantic Ocean, your ship enters a different time zone every day, As you enter each zone, the time changes one hour. Traveling west, you set clock back; traveling east, you set it ahead. Each day of your trip has either twenty-five or twenty-three hours.
If you travel by ship across the Pacific, you cross the International Date Line. By agreement, this is the point where a new day begins. When you cross the line, you change your calendar one full day, backward or forward. Traveling east, today becomes yesterday; traveling west, it is tomorrow.
According to paragraph 2, it seems true that the Atlantic Ocean ______.

A:is one time zone B:is divided into five time zones C:is divided into twenty-four time zones D:cannot be crossed in five days

Strange things happen to time when you travel, because the earth is divided into twenty-four time zones, one hour apart. You can have days with more or fewer than twenty-four hours, and weeks with more or fewer than seven days.
If you make a five-day trip across the Atlantic Ocean, your ship enters a different time zone every day, As you enter each zone, the time changes one hour. Traveling west, you set clock back; traveling east, you set it ahead. Each day of your trip has either twenty-five or twenty-three hours.
If you travel by ship across the Pacific, you cross the International Date Line. By agreement, this is the point where a new day begins. When you cross the line, you change your calendar one full day, backward or forward. Traveling east, today becomes yesterday; traveling west, it is tomorrow.
If you cross the ocean going east, you set your clock ______.

A:ahead one hour in each new time zone B:ahead one hour for the whole trip C:back one hour in each new time zone D:back one hour for the whole trip

{{U}}Once upon a time{{/U}} they used to mine coals in these valleys.

A:At a time B:At one time C:At times D:At the time