BECAUSE THEY TALKED TOO LOUD, THE LIBRARIAN ASKED THEM TO LEAVEA. IF T...

Câu 15: Because they talked too loud, the librarian asked them to leaveA. If they hadn’t talked too loud, the librarian wouldn’t ask them to leaveB. If they hadn’t talked too loud, they wouldn’t have been asked to leave by the librarianC. If they had talked too loud, the librarian would have asked them to leave D. If they hadn’t talked too loud, they would have been asked to leave by the librarian