1.Tom, _(open) the door, please. 2._(open) the door makes the air fresh. 3. _(practise) your English as much as possible. 4. _(pracitse) your English a lot can improve your English. 5._(do) eye exercises between classes. 6._(do) eye exercises is good for youe eyes. open Opening Practise Practising Do Doing 7._(memorize) the text every day must be useful. 8._(memorize) the text and study grammar every day. 9. _(fix) up the bicycles that he picked up yesterday. 10._(fix) up the bicycles he picked