—What did Bob ask you just now?
—He wanted to know how long________when he reached the cinema．
A．the film had started
B．the film will start
C．the film had been on
Helen________her keys in the office so she had to wait until her husband________home．
| A．has left；comes |
| B．left；had come |
| C．had left；came |
| D．had left；would come |
The pen I________I________is on my desk．
| A．think；lost |
| B．thought；had lost |
| C．think；had lost |
| D．thought；have lost |
________got into the room________the telephone rang．
| A．He hardly had；then |
| B．Hardly had he；when |
| C．He had not；that |
| D．Not had he；when |
Tom was disappointed because most of the guests________when he________at the party．
| A．left；had arrived |
| B．left；arrived |
| C．had left；had arrived |
| D．had left；arrived |