题目内容
句型转换
Do you know? When will he be back?
（将上述两句合并成含宾语从句的复合句）Do you know ________ he ________ be back?
答案：when;will
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题目内容
句型转换
Do you know? When will he be back?
（将上述两句合并成含宾语从句的复合句）Do you know ________ he ________ be back?