来自孙兴文的问题
【1.-howcleanthewindowis!-yes.it[]justnow.AhasbeencleanedBwascleaned2.-howcleanthebedroomis!-yesiamsurethatsomeone[]itAcleanedBhascleaned】
1.-howcleanthewindowis!-yes.it[]justnow.
AhasbeencleanedBwascleaned
2.-howcleanthebedroomis!-yesiamsurethatsomeone[]it
AcleanedBhascleaned

