You must avail yourself of every opportunity. You must avoid eating sweets. You must avoid further expenditure. You must avoid making such mistakes. you must be You must be able to speak either English or Spanish in this company. You must be above such mean conduct. You must be accurate in counting. You must be a fool. You must be a fool to do such a thing. You must be a good athlete to have run a mile in such a short time. You must be a good cook.