题目内容
. Rain and freezing temperatures ____ to make snow.
| A.combined | B.combine | C.combine with | D.combined with |
B
考查时态:句意:雨水和寒冷的温度结合起来就形成冰,这是客观事实,,用一般时 如果要用COMBINED WITH 必须用在RAIN 和FREEZING之间 所以是B
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| A.combined | B.combine | C.combine with | D.combined with |