I didn’t know________.

I don't know________. A: what was outside the matter B: what the matter outside was C: what was the matter outside D: what was happened outside

My mother looks very busy.I want to help her, but I don’t know________. A: How to do B: what to do C: what to do it

The man want to know________. A: how long the show will last B: how to avoid lead poisoning C: how the skyscraper was built D: how glass and crystal differ

人从不知到知有以下几个阶段（） A: Know（知）、Know how（知其然）、Know why（知其所以然）、Know what（知道是什么） B: Know（知）、Know how（知其然）、Know what（知道是什么）、Know why（知其所以然） C: Know（知）、Know what（知道是什么）、Know how（知其然）、Know why（知其所以然） D: Know what（知道是什么）、Know（知）、Know how（知其然）、Know why（知其所以然）

I didn’t know________. A: how long he would finish it B: where you had gone C: where you have been D: what was the matter with her

I didn’t know________. A: how long he would finish it B: where you had gone C: where you have been D: what was the matter with her

 It __ long before we __ the result of the experiment.[br][/br][br][/br] A: will not be; will know B: is; will know C: will not be; know D: is; know

13 A: They know how to adapt. B: They know when to stop. C: They know when to make compromises. D: They know how to control their emotion.

I would ask her to a movie, but I _________ her name. A: don't know B: know C: hadn't know D: will know