Tell John not to leave the house unless he that the lights .
| A．will make sure，turn off | B．makes sure，are turned off |
| C．will make sure，will turn off | D．makes sure，will be turned off |
There is not much time left, so I’ll tell you about it．
| A．in detail | B．in brief | C．in general | D．in all |
If you’d like to succeed in the work, you must take gre
at to do it
| A．pain | B．pains | C．effect | D．effort |
I really appreciate some time to surf the Internet．But I am too busy．
| A．to have | B．to having | C．have | D．having |
Do you know the professor in home we stayed?
| A．which | B．his | C．whose | D．whom |
I failed in the final exam last tem．Only then the importance of studies．
| A．I realized | B．I had realized | C．had I realized | D．did I realized |