There is a boy in the water. He ____ across the river.
A. are swiming
B. are swimming
C. is swimming
D. is swiming
Look, the girl ____ her mother some flowers.
A. is showing
B. are showing
C. show
D. to show
ch___se n. 乳酪,干酪
A. ea
B. ee
C. ei
D. ie
c__f____ n. 咖啡
A. a,ee
B. a,fee
C. o, fee
D. o, ee