http://www.carmenlu.com/first/grammar/pastbe1_2.htm
http://www.englishbee.net/lessons/inter_exer/was_were/was_were_2/was_were_2.htm
https://www.montsemorales.com/gramatica/Pastsimplebe.htm
http://www.english-room.com/test_001.htm
http://www.carmenlu.com/first/grammar/pastbe1_2.htm
http://www.englishbee.net/lessons/inter_exer/was_were/was_were_2/was_were_2.htm
https://www.montsemorales.com/gramatica/Pastsimplebe.htm
http://www.english-room.com/test_001.htm