50．On her way home, Steve saw a thief         in a shop, she stopped         110 at once．

A．steal; call                                B．to steal; call

C．stealing; to call                            D．stealing; calling

49．――Mum, it' s time to go to school now．Maybe I will be late．

――         ．I’ll drive you there．

A．Hurry up                                                   B．In a hurry

C．Take it easy                            D．No, you have enough time

48．――What’s wrong with your MP3 ?

    ――It doesn’t          ．Please help me mend it．

A．open            B．work              C．turn             D．go

47．――I hope you can help me with my English this evening．

    ――          ．

A．Sorry, I’m afraid not                                         B．Yes, I'm busy

C．I hope so                             D．Certainly not

46．We all hope our country           faster and faster in the future．

A．develops          B．goes            C．grows            D．runs

45．You           worry．All of us will help you．

A．can't              B．mustn’t            C．needn't            D．may not

44．The game is very           and she’s           in it．

A．interesting, interesting                    B．interested, interested

C．interested, interesting                     D．interesting, interested

43．What           in the middle of the concert?

     A．happened         B．did happened    C．has happened     D．happen

42．Could you tell me          ?

A．where do you live                       B．who you are waiting for

C．who were you waiting for               D．where you live in

41．While her mother           clothes, Susan was doing her homework．

A．is washing               B．was washing        C．washed            D．washes