问题

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;

正确答案是：

同类题型

She felt ________ of doing that and tears ran down her cheeks. [ ]

There is a map_______ China _______ the wall.

skirt do you prefer, Lucy— _______ I’m concerned, the purple one is better.

It’s seven o’clock in the evening. They must _____ at home. —I think so. Perhaps they _____ CCTV News.

Don’t ______ the window. Listen to me carefully.