问题补充：
Sothat many parents are too worried to let their children travel alone at the beginning of the new term.
A. is the distance great
B. great the distance is
C. the distance is great
D. great is the distance
答案：
A. is the distance great
B. great the distance is
C. the distance is great
(答案→)D. great is the distance
解析：在so……that句型中，当把so前置时，主句需用部分倒装的形式。本句的正常语序是：The distance is so great that many parents are too worried to let their children travel alone at the beginning of the new term.句意：距离太远许多父母太担心不让他们的孩子在新学期初独自旅行。
