<prompt> Which of the following cannot be done by a 15 month child?Walking with suppoTransfers objects from 1 hand to anotherBuilds tower of 2 cubesSpeaks three-word sentences  <response>: A child speaks 2 word sentences at 2 years and 3 word sentences at 3 years -walks with suppo 12 months onwards, -transfers objects at 7 months, -builds a tower of 2 cubes at 15 months 