Please help to identify the correct answer.<br/><br/>Question: Tom asked Mary,"Did you water the plants that were on the windowsill while I was in Japan?"<br/><br/>First Answer: Tom asked Mary if she had watered the plants that had been on the windowsill while he <b>was</b> in Japan.<br/><br/>Second Answer:Tom asked Mary if she had waterd the plants that had been on the windowsill while he <b>had been</b> in Japan.<br/><br/>Which is correct, the first answer or the second answer?