This is my new pen. Let me ________________.

Flight 551 for Dallas ________I must be off now——Have a pleasant trip then

Hurry up! Flight 4406offat 18:40.

___ present, the biggest nature park ___ milu ___ in Chian is the Nanhaizi Milu Park , ____ is about 20 kilometres south of Beijing

The law of over－learning explains why cramming (突击学习) for an examination, though it may result in a passing grade, is not a ________ way to learn a school course.[ ]