（    ）29．Everyone can play an important role in the society．As members，we should try our best to do________．

            A．what we should do       B．what should we do   C．how we should do

（    ）28．Boys and girls，____________up your hands if you want to take part in the summer

          camp（夏令营）．

            A．putting                 B．to put             C．put

（    ）27．You can find a way to reach your goals when you are proud _____yourself and stand

           tall like a sunflower．

            A．on                     B．from              C．of

（    ）26．一How can I make friends in a new school?

            一Say hello to_______ to you today，and you can have a friend tomorrow．

            A．new someone            B．someone new       C．new anyone

（    ）25．A new study proves a ________walk every day is enough to keep people away from

           becoming fat．

             A．30 minute           B．30 minute’s         C．30 minutes

（    ）24．一It’s not just the government’s duty to protect the______．

            一I agree．My grandpa often_________up garbage for recycling and takes good care  of animals and plants．He is a good example to US．

             A．environment；picked  B．environments；pick  C．environment；picks

（    ）23．Humor（幽默感）is very important to human beings．We can never have too much of it．Without humor，life would be__________．

            A．disappointed              B．boring             C．bored

（    ）22．一Good news! Bill won______ medal in the long jump just now．

          一Really? That’s his_______ one at our sports meeting．

            A．a：four                      B．an；fourth            C．a；fourth

（    ）21．Relax! ______you finish this English exam，you’11 be free and feel on top of the world．You can make it if you put your heart into it!

          A．As well as                      B．As soon as            C．As good as

（    ）20．A．the others                   B．one another          C．other people

选择最佳答案。