选出正确的词或词组完成句子。3]6s0Y'u-j/f9}3b,_8A-k.i0U4m
The boy 'v0C0P'f7X'U （listens, is listening） to the teacher carefully now.3]6s0Y'u-j/f9}3b,_8A-k.i0U4m