请选择DCBA*K*M+]4L(}'y,w)N.y4o9f4Y3I4Q;w*@:t:[ -Where is your sister?0w*m4d1j-i5u
-She _________ my mom with cooking.0w*m4d1j-i5u
A. helps0w*m4d1j-i5u
B. helping0w*m4d1j-i5u
C. is help0w*m4d1j-i5u
D. is helping0w*m4d1j-i5u