THIS CONVERSATION PROJECT LOOKS PROMISING, BUT IT’S STILL _______.A....

Câu 15: This conversation project looks promising, but it’s still _______.A. in the early stages B. in advance C. understress D. at first sightĐọc kỹ đoạn văn sau và chọn phương án đúng (ứng với A hoặc B, C, D) cho mỗi câu từ 16 đến 25.Every drop of water in the ocean, even in the deepest parts, responds to the forces thatcreate the tides. No other force that affects the sea is so strong. Compared with the tides, thewaves created by the wind are surface movements felt no more than a hundred fathoms belowthe surface. The currents also seldom involve more than the upper several hundred fathoms5despite their impressive sweep.The tides are a response of the waters of the ocean to the pull of the Moon and the moredistant Sun. In theory, there is a gravitational attraction between the water and even theoutermost star of the universe. In reality, however, the pull of remote stars is so slight as to beobliterated by the control of the Moon and, to a lesser extent, the Sun.10Just as the Moon rises later each day by fifty minutes, on the average, so, in most places, thetime of high tide is correspondingly later each day. And as the Moon waxes and wanes in itsmonthly cycle, so the height of the tide varies. The tidal movements are strongest when theMoon is a sliver in the sky, and when it is full. These are the highest flood tides and the lowestebb tides of the lunar month and are called the spring tides. At these times the Sun, Moon, and15Earth are nearly in line and the pull of the two heavenly bodies is added together to bring thewater high on the beaches, to send its surf upward against the sea cliffs, and to draw a high tideinto the harbors. Twice each month, at the quarters of the Moon, when the Sun, Moon and Earthlie at the apexes of a triangular configuration and the pull of the Sun and Moon are opposed, themoderate tidal movements called neap tides occur. Then the difference between high and low20water is less than at any other time during the month.