1．For most of the day，construction worker Sidney Smith and his brotherinlaw Joseph Chambers had been fishing along the banks of Lake Waco with little success. (完形填空第一段)
一大半天，建筑工人西尼·史密斯和他的姐夫周色夫·柴木波斯一直在瓦克湖边钓鱼，但毫无收获。
(1)She had been studying English before entering the college.她上大学以前一直在学英语。
(2)They had been talking about the matter.
他们一直在谈那件事。
2．...the two men sat in the pickup trying to decide whether they had happened to come across someone’s bad practical joke or something far more serious.(完形填空第三段)
……这两个人坐在小货车里，尝试着去确定是否是碰巧遇到别人恶意的玩笑或是更严重的事情。
