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— I hear that Tom can’t afford his schooling this fall.
— _____, let’s do something for him.
A.If anyB.When necessaryC.When possibleD.If so
D

试题分析:词义辨析。A如果有一些;B当必要的时候;C当可能的时候;D如果这样;句意:—我听说今年秋天Tom上不了学了。—如果这样,我们为他做写些事情吧。根据句意说明D正确。
点评:本题的四项都是重要的省略形式。怕要注意记忆,BC项省略了it is; D项中so代替一个肯定句。
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