As a single mother of three children, she has very little time ________ she can spare to develop her own interest.
| A．when | B．that |
| C．which | D．what |
______ your hand over your mouth when you cough.
| A．Put | B．Putting |
| C．To put | D．To be putting |
______ left when you get to the end of the street.
| A．Keep | B．Keeping |
| C．To keep | D．Kept |
______ him enough time to get home before you telephone.
| A．Give | B．To give |
| C．Giving | D．Given |
_____ some of this juice — perhaps you will like it.
| A．Try | B．Trying |
| C．To try | D．To have tried |
_____ down the radio — the baby’s asleep in the next room.
| A．Turn | B．Turning |
| C．to turn | D．To have turned |