—Have you seen your friend off ?
—Yes. I watched the train leaving the station it disappeared from sight.
| A．unless | B．as if | C．so that | D．until |
Our English teacher is ______ our teacher; she is also our best friend.
| A．rather than | B．other than | C．more than | D．less than |
He was so excited and insisted that what he had done completely______ their demand（要求）.
| A．met | B．meet | C．should meet | D．has met |
Although it had been _____ struggle for him to finish ______ experiment, he enjoyed the result with_______ satisfaction.
| A．the; an; / | B．a; the ; / | C．a; an; a | D．/; the; a |
----Do you mind choosing Peter to be the new chairman? ----___________.
| A．Of course. He is the best choice. |
| B．Certainly not. We can’t find a better one. |
| C．Yes, I do. He is the most suitable person |
| D．No, I don’t. I don’t think he is the suitable person. |
---I am sure you met Alice at the party last week.
---I don’t remember her. What ______ she ______?
| A．was; wearing | B．had; worn | C．did; wear | D．would; wear |