完成句子 根据提供的意思，完成句子。（共10分，每格0.5分）
小题1:他病得如此严重以致他是否回来还不清楚.
He is so seriously ill that ___ was not clear ____ ____ ____ he will come.
小题2:太空飞船使我们到月球旅游成为可能.
Spaceship ______ ________ ________ for us to travel to the moon.
小题3:由于核辐射,很多日本人担心安全问题.
______ _______ ______ _______ nuclear radiation, many Japanese are worried about safety.
小题4:我正要说出真相这时他打断我.
I ______ ______ ______ tell the truth _____ he interrupted me
小题5:老师不允许学生考试作弊逃脱惩罚.
The teacher won’t _____ students ______ ______ ______ _______ in the exam.