The little girl is seriously ill. Luckily we have decided to do ______ it takes to help.
The wounded soldiers were _____ danger, because we had run _____ medicine.
The workers and technicians worked hard _____ to get the Great Hall finished before National Day.
She turned ______ the pages quickly _____ a practiced hand.
The roads are lined _____trees, which have been planted to hold _____the strong winds from the north.
He earned enough money to start his own business _____ offering guide services _____ tourists.