He talks about Rome as if he _________there before.
It is recommended that the project ________ not be started until all the preparations have been made.
The governor is occupied ________ the meeting at the moment. May I take a message?
We planned to climb the mountain today, but in such ________ bad weather, it seems out of ________ question.
—Do you like classical music? —________.I'm quite keen on jazz.
We have ______ the get-together until next weekend when we won’t be so busy.