用括号内所给词的适当形式填空。（共5小题；每小题1分，满分5分）
小题1:When waking up, the fisherman found himself ________(face) with an enormous monster.
小题2:Twenty percent of the students in the university ________(be) chosen to participate in the exchange project each year.
小题3:The cellphones made by Samsung are enjoying their ________(popular) in recent years.
小题4:________(selfish) and hardworking, the newly-come employee was appointed to take charge of the department.
小题5:My brother John has a terrific sense of humor and could be very ________(amuse).