Are they getting ready _____ the exam?
The boy didn't run _______to catch the bus.
It is ____ useful book. ____ book is on her desk.
--- Do you like watching Luneng Team play soccer?--- Yes, _______ great players they are!
It’s a bad habit to ______ what you can do today until tomorrow.
Over $30,000 ______ for a children’s hospital by a British girl several months ago.