Half the class ______.A.is singing B.are singing C.sings

Half the class ______.A.is singing B.are singing C.sings The girl referred to ______ well.A.singing B.sing C.sings D. 单项选择：Who ________ over there now A.are singing B.sings C.is 1..Listen!A boy in the next room.A.sings B.is singing C.sang She __very __.A、is singing ;good B、sings;good C、singing ;wel Listen!She in the classroom.A.sing B.sings C.singing D.is si 单项选择.Listen!The boy is ____ .A、sings B、sing C、singing do you hear her____ in the next room? A sings B singing C is Li Wen is a famous star of__.A singing B sing C sings D sing i like____ songs A.sing B.sings C.singing I often hear him ( )the pop songs .A sing B sings C singing I found him in the office.A.sing B.sings C.was singing