---Long time no see. Haven’t you graduated from university?
---Yes. I _______ English for four years in Wuhan.
| A．study | B．am studying | C．have studied | D．studied |
Tom kept quiet about the accident _______lose his job.
| A．not in order to | B．so as not to | C．in order to not | D．not so as to |
The murderer was brought in ,with his hands ______behind his back.
| A．being tied | B．having tied | C．to be tied | D．tied |
He was disappointed to find his suggestion_______.
| A．turning down | B．turned down | C．to be turned down | D．to turn down |
The salesman scolded the girl caught ______and let her off.
| A．to have stolen | B．to be stealing | C．to steal | D．stealing |
It was so cold that they kept the fire ________all night.
| A．to burn | B．burn | C．burning | D．burned |