Check my 10 sentences, please! 1. Mary is the only one of the students who is from America in our school. A. is B. are C. have been D. had been 2. They plant trees year by year , and the young trees grow taller year by year. A. year by year; year after year B. year after year; year by year C. year after year; year after year D. year by year; year by year 3. He likes traveling, which __C____ his knowledge of the world. A. increases B. rises C. improves D. adds 4. After the new technique was introduced, the factory produced __as twice many___ tractors in 1998 as the year before. A. as twice many B. as many twice C. twice as many D. twice many as 5. We have got to be ___practical___ and buy only what we can afford. A. real B. actual C. practical D. true 6. __What__ she couldn’t understand was ___that____ fewer and fewer students showed interest in her lessons. A. What; what B. That; what C. That; that D. What; that 7. The _missing____ boy was last seen _playing___ near the West Lake. A. missing; playing B. missing; play C. missed; played D. missed; to play 8. They hoped to find a new island which they thought__to exist_____ in the sea. A. was existed B. existing C. existed D. to exist 9. The reading passage is not easy __to read_____. A. to read B. reading C. to be read D. read 10. When I got back home I saw a message pinned to the door, _reading_____ “Sorry to have missed you ; will call later.” A. read B. reads C. to read D. reading