have been needing to do

have been needing to do on top of the world hunger,some environmental problems human activities have contribyted to ( ) soonA.needing solvingB.need solvingC.needing to be solved D.need to solve ------and popular gives one a sort of feeling that nothing can replace. A Being needed B having needed C needing D To have been needed 要一个个分析 谢谢 Have you been to? have been to have not been to I have been to. have been in have gone to have been to have been 之间的区别have been in have gone to have been to have been之间的区别 have gone to ＆ have been to 区别 如何翻译这句话:They have the same needs as parents when it comes to needing help around the house. 16.Young people should go and work wherever___.A.needs B,need C,needing D,needed这个题选什么.为什么17、The leaders__us in our discussion,but owing to more important business they couldn't come.A.were to join B,were to have joined C.had been I have been there,have been 是have been in还是have been to的缩写? have been to是什么时态? have u been to China? have you been to Beijing Have you been to Americe? who will have been to Where have yoy been to