_________ for his good skill,this doctor has a lot of visitors calling for help all the time.
| A．Knowing | B．To know |
| C．Known | D．To have known |
Two fifths of the police _____ in the school near the town.
| A．has trained | B．have trained | C．has been trained | D．have been trained |
.We would like to go and thank him ourselves, but we _____ out his address yet.
| A．haven’t found | B．hadn’t found | C．didn’t find | D．don’t find |
Was it because it snowed last night ____ he didn’t come?
| A．why | B．that | C．when | D．then |
.The purpose of the research had a more important meaning for them than ______.
| A．ours | B． with us | C．for ours it had | D．it did for us |
Believe it or not, he came _______.
| A．drunk home last night | B．home last night drunk |
| C．home drunk last night | D．last night home drunk |