--- Talking of travel, have you ever been to Chicago?--- Yes. I _____ it twice while I was working in the US.
----You didn’t wait for Mr. Smith last night, did you? ---- Yes, but we _______. He didn’t return home at all.
______ surprised me most was the suggestion that he ______.
The house is in _____ bad condition that it badly requires _____.
No conclusion _________ about the new product until the result of the experiment has been announced.
Don't you think it a pity that John ______ have behaved roughly toward us?