-how's your project?i heard you started it last night -i__for it _英语解答

-how's your project?i heard you started it last night -i__for it ,but i haven't decided when to do
-how's your project?i heard you started it last night
-i__for it ,but i haven't decided when to do it
为啥天的事have been preparing?不应该是have being prepared吗?

人气：164 ℃　时间：2020-04-04 07:13:52

解答

have been doing 是现在完成进行时
表示过去一直进行到现在有可能还将持续到将来的一中表达方式.