The tourists could look into the well.They had to throw a coin in first(before)

题目

The tourists could look into the well.They had to throw a coin in first(before)
They had to throw a coin in first before looking into the well
这个句子能这么改吗?
还是必须写成
Before the tourists could look into the well ,they had to throw a coin in first?
They had to throw a coin in first before being allowed to look into the well 这个改法可以吗?

答案

这个句子可以改成：The tourists had to throw a coin in first before looking into the well.
这两种说法也是可以的.
Before the tourists could look into the well ,they had to throw a coin in first
The tourists had to throw a coin in first before being allowed to look into the well