<span style="color:#333333;">We <i>__________</i> tennis every day when we were young.</span><br/><br/><span style="color:#333333;">I think the best answer here is 'would play', but is it true that 'used to play' is wrong here?</span><br/><br/><span style="color:#333333;">Thanks.</span><br/><br/><br/><span style="color:#333333;"><a href='http://esl.about.com/library/quiz/bl_advancedreview.htm?lastQuestion=9&answers=1&submit=Next+Question+>>&ccount=9' target='_blank' rel='nofollow'>http://esl.about.com/library/quiz/bl_advancedreview.htm?lastQuestion=9&answers=1&submit=Next+Question+>>&ccount=9</a></span>