（）---Listen!Who_____inthecla

请选择DCBA(|'O8e8]'j6z4J.M)k*b ---Listen! Who _____ in the classroom?:L)T9c,h9h*e0s(V.y*L

---It must be Alice, I think.:L)T9c,h9h*e0s(V.y*L

A. sing:L)T9c,h9h*e0s(V.y*L

B. sings:L)T9c,h9h*e0s(V.y*L

C. sang:L)T9c,h9h*e0s(V.y*L

D. is singing:L)T9c,h9h*e0s(V.y*L