It’s nice to see you again. What_________ since we last met?
| A．have you done | B．had you done |
| C．have you been doing | D．did you do |
The factory is said __with modern instruments ___ from America.
| A．to have equipped, to have introduced | B．to be equipped , introcuced |
| C．to have been equipped, having been introduced | D．having been equipped, having been introduced |
You may go out ___ your work is done.
| A．unless | B．except | C．until | D．as |
He had promised to come and help us, and ___.
| A．so did he | B．so he did | C．so had he | D．so he had |
I don’t have time to come to your house, but I could ___ at the end of the street.
| A．pick up you | B．pick you out | C．pick you | D．pick you up |
He doesn’t visit Mr. Black___.
| A．as many as he used to | B．as many as he was used to | C．as much as he used to |
| D．as much as he was used to |