I wasn’t blaming anyone: I ________ said errors like this could be avoided

12. —-Did Jack take the doctor’s advice that he _____ in bed for a couple of days?—-If only he _______.

Every Friday is the school open day , __________ parents can go to the class to observe it .

My wife’s ______ complaints about the bathroom being too small really gives me a big headache but I can’t do anything but _____ to accept it as it is.[ ]

____ is our new headmaster?—The man standing by the window, smoking a cigarette.