---What are you going to do this afternoon?
---I will probably go for a walk it stays fine.
| A．unless | B．so long as | C．even if | D．as if |
Unluckily, when I dropped in , Dr. Smith ____, so we only had time for a few words.
| A．was just leaving | B．has just left | C．had just left | D．just left |
—We didn’t find Smith attending the lecture.
—No one ___ him about ___ a lecture the following day.
| A．had told, there to be | B．told, there was |
| C．had told, there being | D．told, there to be |
—The former president of Iraq was caught at last.
—Really? Where ______________ himself?
| A．has he hidden | B．had he hidden | C．was he hidden | D．has he been hidden |
----Could you lend me that book you ____ me about when I telephoned you?
-----No,I am sorry, I can’t. I gave it to a friend.
| A．were telling | B．would tell | C．had told | D．had been telling |
----I’m sorry, but there is no smoking on this flight.
----Oh, I _____ that. Sorry, I won’t again.
| A．don’t know | B．didn’t know | C．won’t know | D．haven’t known |