“What do you want to be?”asked Mrs.Crawford.“Oh,I________president,”said the boy, with a smile.
According to the rules, students must not _____ their books during examinations.
She may have missed the train, in _____ case she won't arrive for another hour.
He had a lot of friends, none of _____ could lend him any money.
He ran as fast as he could _____ to catch the bus.
I’d try even if I may fail ___ __ sit there worrying in time of trouble.