.— Do you know why the teacher asks for me? — He wants you to _________ your absence(缺席) last night.
The question is ____ of great importance.
Yes,___ is difficult to find a job nowadays, but ____ is more difficult is to try to find such a job with a high salary but little work to do.A it ; it B. what ; what C. it ; what D what ; it
Some of the people had ____taken up their arms.
The post office is two _____away.
. —I usually go there by train. —Why not ____ by boat for a change?