They find a sign a tree , and they also find a bird____the tree .A. in , in B. in , on C. on , in
( ) — Where does the rain come from? — It comes from the______. A. soil B. clouds C. sun
( ) Stop at a _________ light. A. redB. yellowC. green
( ) An elephant is much _________ than a mouse. A. longer B. bigger C. smaller
( ) I know “cm” is _______.
( )—What school are you in? —I’m in _______.