找出下列各句中的错误，并在改正。*](U;]4D7\7H4r-\6b0?
We sang English songs and do some Chinese dances last night. 2n7@'B5_.~5M9O:k-D/[9Y;j'h7\___ (s3e+R5c2y)a7|,C'w9F*](U;]4D7\7H4r-\6b0?