A look at recent trends in world fisheries reveals ________ the ocean on a global scale

Every student as well as teachers who ______ to visit the museum ______ asked to be at the schoolgate on time. [ ]

_______environmental damage is done, ittakes many years for the ecosystem to recover．

Not only the engineer but also his enemies ____________breaking into several computer systems last year.

It was _____________________ that the tourists wanted to spend more time taking pictures outdoors.