Mike has much difficulty ________ Chinese so he often asks me ________ help.
| A．to understand, with | B．understanding, of |
| C．to understand, for | D．understanding, for |
_______ no buses , we have to walk home．
| A．There were | B．There being | C．It was | D．It being |
_______ to the left , and you will find the post office．
| A．Turning | B．Turn | C．To turn | D．Turned |
_______ many times , he still couldn’t understand it．
| A．Told | B．Having been told |
| C．He was told | D．Though he had been told |
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
We offered these students a summer course , aimed _____ improving their spoken English．
| A．to | B．in | C．at | D．for |