Until the start of the Industrial Revolution, mankind was poor, hungry, and constantly at the _______ of disease and natural disasters.
We were put into a position ________ we had either to accept we were less important, or fight for equal rights.
In the good care of the nurses, the boy is ______ recovering from his heart operation.
He is so busy. He cannot afford enough time with his son ______ he wants to.
--- Did you find the missing couple in the mountain yesterday?--- No, but we _______ to get in touch with them ever since.
I haven’t seen Sara since the last time we met on her graduation ceremony, and she has changed beyond _______.