only gradually, with the passing of years, _____to a clear understanding of their position.

A computer is very popular and helpful .— I think so. It _______ in many different fields.

________her home, Mary helps her motherwith some housework.

填入下面句中横线处的语句，与上下文衔接最恰当的一项是（ ）不止一位先贤指出，一个人无论看到怎样的美景奇观，如果他没有机会向人讲述，他就绝不会感到快乐。一个人无论遭遇怎样的不幸，如果有向心爱的人倾诉的机会，他的痛苦自然会减轻。 。没有任何人倾听，身处绝对的孤独，快乐会成为失望，痛苦会成为绝望。

－Would you mind me opening the window, sir－_______. I’m feeling a bit chilly.