The medicine works more effectively ______ you drink some hot water after taking it.
| A．as | B．until | C．although | D．if |
______ time, he’ll make a first-class tennis player.
| A．Having given | B．To give |
| C．Giving | D．Given |
Remember _______ off the light when _______ to bed.
| A．turning, going | B．to turn, to go |
| C．turning, to go | D．to turn, going |
Stop _______ me to hurry up. I can only go so fast.
| A．to tell | B．telling |
| C．to have told | D．having told |
Certainly I posted your letter — I remember ______ it.
| A．posting | B．to post |
| C．to be posting | D．have posted |
Please remember _______ the plants while I’m away.
| A．watering | B．to be watering |
| C．to water | D．being watering |