they studied how to turn it into medicines that were easy to take. Finally, after 7 years of work, they succeeded. The Bayer company named this new pain-killing medicine “aspirin”.
Duan Chun was Sarah’s first Chinese pen pal. They wrote a lot of letters and shared the colorful school lives sixty-one years ago. All the letters123(keep) by Sarah. They were full124her sweet memories. However, Sarah hadn...
Although at first it may appear as if some chemicals were added to the water, this rainbow river is completely natural. Cafio Cristales' colours are the result of a rare (稀有) water plant which needs sunlight to grow. The plants...
Dad and Mum added pleasant music to the①我们确保没有异味,或任何其他问题。We made sure there were no bad smells, or anyunforgettable night.other problems.⑧我们经历了几次挫折。②我们把所有的东西都打开,重新搭建了营地。We had several setbacks.We unpacked all the things and set up our camp...
The social circumstances that led to skyscrapers were the growing metropolitan American centers, most notably Chicago. Businesses all wanted their offices near the center of town, but there wasn't enough space. In these cities, architects needed a way to expand the metropolis upward, rather than ...
A When we were in England last year,I went fishing with my friend,Peter.Early in the morning,we 1 (sit)quietly by the side of a lake when we had an unpleasant surprise.We saw a duck come along with three baby ducks paddling 2 (happy)behind her.As we watched 3 ,the...
C. were built with heavy stones D. were the miracles of god 18. Most Mayan people lived in ___. A. beautiful cities B. simple huts C. primitive caves D. stone temples 19. What can we learn about the Mayan calendar? A. It
Blachut knew he needed to rescue the two daughters, who were now further down the river. He jumped into the water again and succeeded in getting one out in the same way he did her mother, while the other was saved by another onlooker. ...
were established 6. In our school library there ___ a number of books and the number of them ___ growing larger and larger. A. is;are B. has;is C. are;is D. have;are 7. The bad weather stopped them ___ the science museum last Sunday. A. to visit B. from visitin...
Then, they studied how to turn it into medicines that were easy to take. Finally, after 7 years of work, they succeeded. The Bayer company named this new pain-killing medicine “aspirin”. Soon, the medicine became a success and made huge money for Bayer. The hard work of scientists ...