什么是be,been,being?请教我吧 谢谢
什么是be,been,being?请教我吧 谢谢
be,being,been 区别
什么是分词,分词的作用?比如be,的现在分词being过去分词been,那么过去分词和过去式was又有什么不同呢?我什么
BE BEING DOING/BE BEING DONE/HAVE BEEN DONE
请教:什么是包容性增长?谢谢!
being done / be being done / have been doing / having been d
请教什么是海岭?什么是海沟?谢谢!
什么是逻辑电路、数字电路、模拟电路?请教,谢谢
【have been being 】or【have been being 】
A.there being B.there to be C.there be D.there been
being还是having been?
I have been here since 1976.请教been(be)的用法.