英文缩写H1N1 的含义是_______________.硬黑 B. 光盘 C. 甲型流感 D. 乙型流感
John became a football coach in the Sealion Middle School ____ the beginning of March.
You can’t wear a blue jacket _____ that shirt. It will look terrible.
It was a pity that the great writer died ____ his work unfinished.
My uncle died ____ heart disease last summer.
Ryan made _____ his mind to study hard but he didn’t.A. in B/ C. on D. up