My friend has returned from the UK. She ______ at Oxford for four years, during which we communicated with each other on the Internet.
–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.
The matter __________ your fate can't be taken for granted. You have to think it over seriously.
Not many people __________ the idea that money brings happiness.