介绍自己是Sam时,说:A.Hello! Sam. B.Hello! I’m Sam.
do not______(缩写形式)A.do't B.don't
them______(主格)A.they B.the
strawberry______(复数形式)A.strawberrys B.strawberries
father______(口语形式)A.mom B.dad
boy ______(对应词)A.girl B.mother