---It’s said that scientists are working hard to ________ a way to deal with H7N9 avian influenza(H7N9禽流感)
---Really? That’s great!

A．caught up with

B．come up with

C．agreed with

D．compared with

科目 英语   题型 单选题   难度 中等

知识点： 主语+系动词+表语