What were you doing at 12o'clock yesterday?我英语盲（快）

What were you doing at 12o'clock yesterday?我英语盲（快） what were you doing at four o'clock yesterday afternoon?回答用是 what were you doing at 8:00 o'clock?we____. （1）What were you doing at ten yesterday morning 连词成句were what ten saturday o,clock doing last at you night 3.what,you,were,7:00,o' clock,at,doing 连词成句 what were you doing at nine o'clock last sunday morning什么wer What were you doing at this time yesterday morning? What were you doing at 7:00 yesterday mornig? What were you doing at this time yesterday?怎么回答 They were doing their homework at 7o'clock yesterday evening What was Tom doing ___6 o'clock yesterday?A.on B.to C.at 选什么