问题描述：
happened to和to happen to的区别
还有.
becoming of 和 become of的区别、
不过.我英语不行.
要说的明白点.
Those American soldiers,who don't know what is ______ them,are being sent to the Middle East.
还有.
becoming of 和 become of的区别、
不过.我英语不行.
要说的明白点.
Those American soldiers,who don't know what is ______ them,are being sent to the Middle East.
问题解答：
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