When I think something is right, I will stick to that ,sometimes it sounds a little but I am now trying to find a balance between insistence and compromise.
My parents will not ______ my birthday party if I don't do well in my next test.
He ______ have sent the e-mail at an earlier time, but there was something wrong with the network.
—Can Professor Li be in the laboratory? —He ______ be; I saw him there half an hour ago.
My newly-purchased magazine is nowhere to be found. ______ I have left it on the train?
—Did your mother sleep well last night? —She ______ have slept through all those noises.