David,_____raised and educated in New York,lived and lectured in Africa most of his life.A. who B. if C.while D.though选哪个,并给出详解,为啥其他三个不行!谢谢

David,_____raised and educated in New York,lived and lectured in Africa most of his life.A. who B. if C.while D.though选哪个,并给出详解,为啥其他三个不行!谢谢 David s_ an exciting movie last weekend.填单词 连词成句:school,hours,after,lesson,David,has,an,art,for,two This is David.He is___American boy.A:an B:a C:the In my new school I have an English friend ()(call)David. I'm an English boy.My name is ( )选择 Amy David Nancy Helen David will have an exam next week.He____(study) hard these days. 戴维曾经去过英语国家吗?___ David ever ___ to an English-speaking country? David is ___only student in my father's company?A.a B.an C.the David will have an exam next week.He____(study) hard these days. David would like to ( ) an accountant in the future.大卫将来想从事会计工作. david bought a car yesterday but it is ( ) second-hand onea/an/the 还是不填 I found an aspirin bottle______dropped on the floor of David’s roomwasB.hadC.had beenD.is David has_________cat.It‘s very nice.A.a B.an C.the? 谁能找到这篇阅读：David is an English boy of 14.His parents work. David,an oilman while running his family business.这句话有grammar mistake吗? David put on an English short play in the audio-visual building.划线部分an…play怎么提问 Jime is___,but David is an___ A:English;American B:an English;America C:English;AmericaD:an English;America