They have the tests in three days.
此句话翻译为：他们考试为期三天。
这样翻译对吗？如果不对的话，这句话应该如何翻译？
是不是They have the tests for three days.这句话是正确的。
他们考试为期三天。
They have the tests in three days. （错误）
They have the tests for three days.（正确）
