Some of the heat near the surface of the earth _____ electricity

It doesn’t often snow in my hometown in winter, but it ___be rather cold sometimes.

My cousin said, “I went to a concert three days ago.”—My cousin told me that _______ ________ a concert __________.

I’ll never forget the day _______ I bought my own guitar with my own money.

依次填入下面一段文字横线处的语句，衔接最恰当的一组是中国茶有红、绿、青、黄、白、黑六大类2000多种，外形千姿百态，香气各具特点，滋味风格迥异，效能各不相同， 。 ，它是茶叶品质的综合表现。 ，它是茶叶品质的综合反映。 。 。① 香气高、滋味醇、叶底匀、汤色清，是好茶；反之则劣② 所谓外形是指干茶的芽叶比例，有无锋苗以及老嫩、松紧、整碎、净杂、光润、鲜暗等程度③ 条索紧、嫩度好、锋苗多、色泽润，是好茶；反之则劣④ 所谓内质是指香气的高低、纯杂、长短，滋味的浓淡、强弱、鲜淳、苦涩，叶底的嫩度、色泽、净匀度，汤色的鲜活、明亮程度⑤ 不管差别多大，选择茶叶的方法是相同的，都离不开看外形、评内质