To learn the piece of music quickly, you'd better hear it ___ as many times as possible.

Great attention must be paid ______ education, especially in the poor area.

Her little son fell off the boat into the water due to her carelessness. The mother couldn’t help _____because she couldn’t help _____ her son out of the danger.

We were surprised      the temple still in good condition.

To get an education, _________.