根据下列各句句意及首字母和英文提示，填上正确单词：
Just as the study i_________ (show), opinions about cloning vary from person to person.
After 3 years’ training, she still couldn’t o__________ (get) the driver’s license.
You will be sorry for not g________ (seize, catch) this good opportunity.
ccording to the school rule, cellphones are f__________ (not permit) in the classroom.