They were walking along the shore _______ a huge wave appeared out of nowhere, sweeping them out to sea.
Her parents require that she __________ TV after she finishes her homework.
In America and Europe, it is __________ to tip anything from 10% to 20%.
The couple said they __________ for Chicago the next month.
I __________ it if you could show me the way downtown.
Even if the US __________ do so, it __________ change the size of the US trade deficit.