My parents insisted that I _____ medicine instead of law. 

.I didn’t see Mr White at the meeting ._____ he come, he would have given a lecture.

______you like to have dinner with me this evening?

-- It’s many years since I saw you last； I _____ you at all.--- I wouldn’t have, either, if someone ______ you by the name.

Do you think he is lazy？” “I _____ so once, but I don’t now.”