问题详情：
每句有一处错误，请按以下要求改错：
错误：把某词改为某词。写为：某词---某词。 例如：was—were
增加：在某词后加某词。写为：某词后加某词。例如：by后加the
删除：去掉多余的词。写为：去掉某词。例如：去掉a
71. It is typical for him to take hard jobs.
72. We are in the possession of that big house.
73. His words caused a great deal discussion.
74. Things then greatly changed, as surprised us.
75. Look, there comes the rest of out guests!
76. There are five pairs to choose, but I’m at a loss with to buy.
77. Take it easily. You will not fall behind.
78. What if you were to run out with money?
79. The reason why they were punished was because they fought with other students yesterday
80. Who leaves the room last ought to turn off the lights.
【回答】
71. for-of 72. 去掉the 73. deal 后加of 74. as-which 75. comes-come
76. choose后加from 77. easily-easy 78. with--of 79. because-that 80. Who-Whoever
知识点：其他
题型：短文改错
