It’s meaningful usto do something for people in need．—It’s really nice youto think so．

She ________ a model before she _______ a superstar.

Hi, Steve, have you finished your book report—Not yet. I haven’t decided which book _________.

Will your brother _______ find a good job in Beijing

下列各句中，加框的成语使用恰当的一句是（　　）