The clairvoyant principal always seemed to know when trouble was afoot.
True. If you have outlined responses for all five questions, you will be given with 50-60% score on each item. So the total score for this case would be 250-300 points over the total of 500, assuming that each item is good for 100 points. If in case, you answered two questions only completely, your score would be perfect for this items and total is 200/500.
Present perfect tense. Have washed is the verb, Have or Has is used to show an action that has taken place in the present, not quite long or is still taking place
