选择题：_______is the custom, the investigators carried out a painstaking search of the

题目内容：

_______is the custom, the investigators carried out a painstaking search of the debris after the air crash.

A.What

B.As

C.Which

D.That

参考答案：

答案解析：

The ritual of English tea time is believed to have originated in the late 1700's

The ritual of English tea time is believed to have originated in the late 1700's when Anna,Duchess o

分类：教师资格题型：选择题

分类：教师资格题型：选择题

分类：教师资格题型：选择题

分类：教师资格题型：选择题

Passage 1Hidden Valley looks a lot like the dozens of other camps that dot the woods of central Main

分类：教师资格题型：选择题