Today’s young people can’t live without smart phones. They keep their hands on the phones whenever they go, even while they_______meals.
—_______are they doing? 一They are running.
一Do you have_______pens in the pencil case? 一No,I don’t have_______.
.It’s best to plant trees(植树)in_____.
.一________woman is Tom’s mother? 一The one in the red coat.
Now I’m ________ my turn.