WHEN HE (GO) TO SEE THEM LAST NIGHT, THEY (PLAY)……….CARDS. THEY (SA...

21. - BAI TAP TIENG ANH ON THI HKI TU LUAN
BAI TAP TIENG ANH ON THI HKI TU LUAN

21.When he (go) to see them last night, they (play)……….cards. They (say)………..they (play)………since 6 o’clock.