Two explosions near the finish line of the Boston Marathon killed at least 3 people and injured more than 180 others, and currently FBI has figured out how it __________.
He was left _____, with no one ____ after him.
The reporters have found out ____ it was _____ saved the little girl.
The experts are trying to find ways of ____ the animals in danger.
Tom, as well as the other children who ____ no parents, ____ good care of in our country.
Go on ______ the other exercise after you have finished this one.