填空题 About 150 years ago
填空题13. Bill will present a paper at the conference describe his new approach to eliminate a certain kind of water pollution.
填空题 Historically
填空题3. For centuries large communities of people lived on houseboats in parts of the world where the climate is warm and the waters are calm.
填空题14. The amount of the Antarctic Peninsula are thought to contain copper deposits are similar to those in the Andes Mountains of South America because the two areas were once contiguous.
填空题1. Be careful to give the caterers an accurate count of the number of people whom you expect to have gone to the wedding reception.
填空题 This year, as the past
填空题 Sparrows, small birds of the finch family
填空题 When a nucleus is not dividing
填空题8. The news may be true but as I heard it only from second-hand I am not likely to give it credence until I have it confirmed.
填空题10. The advantages of the photovoltaic cell are its zero pollution, its durability, and its ability for producing energy directly from the sun.
填空题11. The American writer Alex Haley traveled more than a half million mile to authenticate his novel Roots.
填空题7. Chosen the most outstanding student on his campus made his parents very happy.
填空题9. Eclecticism is the practice of mixing elements dissimilar in style in single work of art.
填空题Heavy Rain Can Trigger Earthquakes暴雨会引发地震 Huge do
填空题Eyes to the Skies Getting Bigger观望太空的眼睛越睁越大 A tel
填空题5. Not until six thousand years ago did man develop the first bows and arrows, and began to make pottery and the first fish hooks.
填空题3. The ovaries of certain primates each container approximately three hundred thousand eggs which are released one by one over a span of about thirty years.
填空题8. How I wish to help the people whose kindness and gentleness have made my life worth to live.
填空题 One of Phillip Wheatley's earliest verses