I will tell him as soon as he ____ back.【单选】
A. come
B. comes
C. will come
D. came
We ____the floor and ____ all the windows.【单选】
A. mopped... cleanned
B. moped ...cleaned
C. mopped... cleaned
D. moped ...cleaned
Well go to play with snow if it ____ tomorrow.【单选】
A. snow
B. snows
C. will snow
D. snowed
It’s polite to stand in ____(line).