---What are you busy with ?
--- We are carrying out a research _______ the causes of cancer.
| A．into | B．onto | C．to | D．in |
All the soldiers were placed exactly ________ the local government wanted them for the control of the comeback of the flood.
| A．while | B．when |
| C．where | D．though |
Provide your doctor with a detailed medical history ________ he can give you accurate treatment.
| A．even if | B．in case |
| C．so that | D．as though |
—I don't mind how you do it ________ you finish the painting on time.
—OK, I see.
| A．as well as | B．as far as |
| C．as long as | D．as fast as |
The government should consider ________ people and the environment will be affected before they make decisions.
| A．whether | B．which |
| C．where | D．what |
________ is often the case with old people, my grandfather is fond of doing morning exercise.
| A．As | B．Which |
| C．What | D．It |