I had as much fun sailing the seas as I now do with students.( )
working
work
to work
worked
The number of people who ____English as a foreign language __more than 750 million.
Right now the writer and manager _____ busy preparing for the following meeting.
It is reported that large amounts of money _____ spent on the cross-sea bridge so far.
If law and order as well as rules and regulations ______, neither the citizen nor his property is safe.
President Obama has two daughters, _____ able to fit in well with their citizens.