Wells is one of the editors who always (take,takes) a leading role in (his,their) community这题到底是选单数还是复数?语法教程的答案书上说takes/his 或take/their都可以并且是Informal的用法我非常不理解.我认为第一

英语翻译Slim hole drilling has gained wide acceptance,however,it presents a new set of challenges and problems.One such chal-lenge is reducing annular pressure losses (APLs).Due to the re-duced annular clearance in slim hole wells,the APL is usua The children do the main jobs for the family,the most important of which is bringing the water from the wells.谁能说明 of which is 的语法? Wells is one of the editors who always (take,takes) a leading role in (his,their) community这题到底是选单数还是复数?语法教程的答案书上说takes/his 或take/their都可以并且是Informal的用法我非常不理解.我认为第一 What is the number that is one half of one quarter of one tenth of 400? What is the end of one hundred? the waiting is also one kind of This is one of the ____watches.(run) This is one of the _______watch(run) One of the v___ is from France. one of the doctores is american.翻译 this one really is out of the My father is one of the ( )(drive) pains is one part of the This dress is one of the ( visit ) She is looking () one of the sweaters. 英语翻译要求：只求通顺,最好意思也通顺,纯粹软件翻译复制黏贴者勿扰Casing Design and Well Construction in Phase II Wells.One likely explanation for the casing pressure in the Phase II wells is the change in casing design a The Great Wall is one of the s___ of China. One of the pages of the book is ____(miss)