____________[A] progress[B] fact[C] need[D] question

Children need friends____________their own age to play with． A．of B．forC．in D．

The author raises the questions in Paragraph 2 to introduce the fact that people____.A

_________(59)A.have to B.must C.should D.need

_________(63)A.fact B.planC.reason D.trip

_________(59)A.have to B.mustC.should D.need

62._________A.warning B.inference C.need D.guidan