MIKE IS PLAYING CHESS. HOW LONG ____ HE ____

14) - TÀI LIỆU BO DE TRAC NGHIEM ON THI VAO 10
TÀI LIỆU BO DE TRAC NGHIEM ON THI VAO 10
14) Mike is playing chess. How long ____ he ____?A. did/play B. is/playing C. has/play D. has/been playing