With more than 17000 islands, _____ only 6000 are inhabited, Indonesia is the world’s largest archipelago (岛国).
I think ________ good knowledge of English is ________ great help when you are traveling around the world.
Being able to speak another language well is a great _____ when you're looking for a job.
―I think it’s too late to apologize to Kate. ―Never mind. _______.
Having ________ every night is very important for your health.
He made three good friends in the university, ______ joined the army after graduation.