the bird flu ____has killed ____chicken in some Asian countries jumped to humans
问题描述：
the bird flu ____has killed ____chicken in some Asian countries jumped to humans
Awhich,million of Bthat,milions of Cwho,several million
答
the bird flu ____has killed ____chicken in some Asian countries jumped to humans
选B
第一空是定语从句
先行词在从句中作主语
【the bird flu has killed milions of chicken in some Asian countries 】
所以which和that都是可以的
who是指人的时候用的
后一空【millions of】表示数以万计,用复数形式
所以选Bseveral million,s要不要加？many million呢？两个都不用加的