---Mary has a very low opinion of George.---It can' t be any worse than ____ of her.
__________ we had read your letter __________ the true state of affairs.
To his disappointment, the opinion he tried to stick __________ wrong.
–Excuse me, Madame. Is this plane __________ take off soon?–Oh, yes. In five minutes.
An awful accident __________, however, occur the other day.
Barrack Obama __________ President of the United States since 2010.