Grandma was insistent that we ______her soon.（）

A. Why not?B. She's an engineer.C. I'll try my best.D. Is five dollars enough?E. He's my nephew.F. Stop for a rest.G. It's worth seeing.H. Repay the money.56. Joe: I've left my money in my house. Can you lend me some?Ann: ______ 点击查看答案

The passage focuses on（）.

A.wild and farm birds
B.a fin virus
C.bird flu
D.infected birds

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