In the good care of the nurses, the boy is ______ recovering from his heart operation.

Five firemen ________ escaped death when a staircase collapsed beneath their feet. 

They had planned to go for a picnic, but because of the rain they had to stay home_______.

.—Jenny, I've finished my summer school classes.—Well, Chinese is _______ difficult to learn, isn't it?—It seemed that _______ at first. But after a while it starts to get easier. I got an A in the exam.

In a sense, no country, big or small, should object to the trend of peace and development, ______ creating trouble to others.