He is not native, if he were, we _______ this discussion over his identity.
| A．would not be having | B．are not having |
| C．had not had | D．will not have |
-----Haven’t seen you for ages！ Do you still work in Guangzhou？
-------_______. It’s two years since I worked there.
| A．Yes, I have | B．Yes, I do | C．No, I haven’t | D．No, I don’t |
Would you like to remind me _______ the medicine tomorrow?
| A．of taking | B．taking | C．to take | D．take |
The theory he sticks to ______ to be of no use in our studies.
| A．proves | B．prove | C．proving | D．be proved |
____ that caused him to serve dinner an hour later than usual.
| A．It was we being late | B．It was our being late |
| C．It was we were too late | D．It was because we were late |
---- Do you know his address？
---- No, I also wish I _____ where he _____.
| A．knew, lived | B．knew, lives | C．know, lives | D．know, lived |