题目内容
Scientists are trying their best to _______ways to treat the terrible disease called H7N9.
| A．come up with | B．look forward to |
| C．talk about | D．give up |
A
解析试题分析：句意：科学家们正在努力寻找治疗这种称为H7N9可怕的疾病的方法。come up with想出；look forward期待；talk about 谈论；give up放弃。本题选A。
考点：考查动词短语。
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