have worked
have alreay worked
have been
have written
I just have read (或I just read)
have never read
haven't written
Have you ever done that
考察现在完成时的用法.注意所用的连接词since,yet,for,ever.
have worked
have alreay worked
have been
have written
I just have read (或I just read)
have never read
haven't written
Have you ever done that
考察现在完成时的用法.注意所用的连接词since,yet,for,ever.