. Busy as he is, he ________ a few hours a week for physical exercise.
—Is John coming by train.—He should,but he ________ not.He likes driving his car.
There ________ be any difficulty about passing the road test since you have practised a lot in the driving school.
But for the help of my English teacher,I ________ the first prize in the English Writing Competition.
—It's the office!So you ________ know eating is not allowed here.—Oh,sorry.
Keep up good state of mind even if you ________ fail plenty of times.