问题
选择题
We found several _______ of rice near the hole. The mice may have stored a lot of _______ in the hole.[ ]
A. grain; grain
B. grains; grains
C. grain; grains
D. grains; grain
答案
答案:D
We found several _______ of rice near the hole. The mice may have stored a lot of _______ in the hole.[ ]
A. grain; grain
B. grains; grains
C. grain; grains
D. grains; grain
答案:D