We offered these students a summer course , aimed _____ improving their spoken English．

         A．to           B．in            C．at             D．for 

All their attempts to rescue the child from the burning  building were ______．He dies soon afterwards．

         A．in place          B．in return    C．in vain          D, for

_______ many times , he still couldn’t understand it．

         A．Told                    B．Having been told  

         C．He was told             D．Though he had been told

_______ to the left , and you will find the post office．

         A．Turning           B．Turn C．To turn     D．Turned

_______ no buses , we have to walk home．

     A．There were            B．There being   C．It was            D．It being

---I fell off my bicycle and broke my leg yesterday．

---Is that ____ you drank too much？

         A．why    B．how   C．because     D．when

The building ______ next year will be a restaurant．

A．having been built             B．to be built  

C．being built                D．built

They are _______ little children that you can’t blame them ______ much．

         A．so; so          B．so; too        C．such; too   D．such; such

Mr．Shaw can’t get promotion ________ his lack of qualifications．

         A．thanks to   B．for      C．because     D．because of

______ a good result，the professor decided to do the experiment once more．

     A．Not getting           B．Getting not      C．Not having got         D．Having not got