请选择ABC4o0U3_)n(V;a1Y+K']+U)s;r My sister can _____ well. She’s a good ______./G,P)|5W3A.d7?/B4[-[(@:D5j,A
A. singing; singer/G,P)|5W3A.d7?/B4[-[(@:D5j,A
B. sing; singer/G,P)|5W3A.d7?/B4[-[(@:D5j,A
C. sing; singing/G,P)|5W3A.d7?/B4[-[(@:D5j,A