4、Mymotherboughtmeabook.=Mymotherboughtabooktome.13. beup=getupBeup,Tom!=Getup,Tom.14. catchupwith=keepupwithIcancatchupwithothers.=Icankeepupwithothers.15. catchabus=takeabusCanIcatchabus?/CanItakeabus?16. catchacold=haveacoldOh,no!You’vecaughtacold.=Oh,no!You’vehadacold.17. co
5、meinto=stepintoHecameintotheclassroom.=Hesteppedintotheclassroom18. comedown=getdownComedown!That’sdangerous.=Getdown!That’sdangerous.19. dowellin=begoodatHedoeswellinswimming.=Heisgoodatswimming.20.dotheshopping=goshoppingI’lldotheshopping.=I’llgoshopping.21. dropoff=getoff22. e