1．----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
2 ．----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
