I have been busy since yesterday.
I have been busy since yesterday.
I have been busy since yesterday.现在完成时是have加过去分词,但这里的过去分词在哪里
I have been busy yesterday afternoon为什么要用have been busy而不用ha
I have been sick since yesterday.中have been 是什么是时态为什么要用been.
I have been very busy.
i have been busy getting ready for the camp since last week翻
I have been busy since Monday这个句子中哪个是过去分词?
have been busy”与“I'm very busy”的区别
I HAVE BEEN HERE SINCE TIME
i have been skating since nine years
I have been in CZ since last year.这话对么?been in后可加since吗
I have lived here since then还是I have been here since then对啊?