问题

________ they decide which college to go to, students should research the admission procedures.[ ]

A: As
B: While
C: Until
D: Once

正确答案是：

同类题型

He was knocked_______by a stone. [ ]

This picture was taken when my father was a child and even I myself couldn’t _____.

you going there with us— If Mary wants to go, __________.

The number of various educational programs is increasing, _______ important roles have been realized by more and more people.

His father hoped adoctor when he was a child .