Everything ________ into consideration, they ought to have another chance [ ]

_____ is well-known to allthat the 2016 Olympic Games will be held in Rio de Janeiro, Brazil.[ ]

Science is really _______ useful sucject although it is very difficult.

If you focus on what you’ve left behind, you’ll never be able to see what lies ahead.— That’s it.

Whydoyou hang that photograph above thefireplace— ______ visitors of the memorial days of Long March，Sir.