If Tom is doing his homework when you come back,don’t disturb him,please.If Tom is doing 可以改为do吗
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If Tom is doing his homework when you come back,don’t disturb him,please.If Tom is doing 可以改为do吗
If Tom is doing his homework when you come back,don’t disturb him,please.
If Tom is doing 可以改为do吗
If Tom is doing his homework when you come back,don’t disturb him,please.If Tom is doing 可以改为do吗
不能用do
这里强调的就是动作的状态,
肯定要用进行时,因为他正在做作业的时候,你不要打扰他.
所以这个正在发生的状态不能改为一般现在时.
并且,有个时间副词when,一般常用来表示正在进行的状态.
同意楼上- -
不可以，是进行时。
你好。语感告诉我：
1 更好的选择是：WHILE Tom is doing his homework when you come back, don’t disturb him, please.--------我们应该使用while来替换if。你的句子本身就不太合理，所以你会提出疑问。
2 完全可以用If Tom does his homework - - - - --，.因为 ...
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你好。语感告诉我：
1 更好的选择是：WHILE Tom is doing his homework when you come back, don’t disturb him, please.--------我们应该使用while来替换if。你的句子本身就不太合理，所以你会提出疑问。
2 完全可以用If Tom does his homework - - - - --，.因为 if 在表条件时首选的往往是一般现在时，如：If he comes tomorrow (when you happen to see him),give him this book. It is his.
3 If Tom is doing his homework==If Tom is BUSY doing his homework.
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