1.Simon is busy _____ (organize) a school trip.
问题描述：
1.Simon is busy _____ (organize) a school trip.
2.We are looking forward to _____(see) Yao Ming at the airport.
答
1.Simon is busy organizing (organize) a school trip.【busy doing sth】忙于.
2.We are looking forward to seeing (see) Yao Ming at the airport.【look forward to doing 】期待...
都是固定词组O(∩_∩)O谢谢