I would appreciate _________ if you could come to my birthday party.
| A．you | B．that | C．this | D．it |
______ the pieces of cloth with a loose stitch before finally sewing them together.
| A．Join | B．To join | C．Joining | D．Joined |
______ until the lights have turned to green.
| A．Wait | B．To wait |
| C．Waiting | D．Having waited |
______ 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 |