Three questions！

[Harry12345]

Teacher：
1 Occasions are quite rare_____I have the time to spend a day with my kids.
A when B which C what D where

2 _______is known to us all is that the 2008 Olympic Games will take place in BJ.
A It B What C As D which

3 It is not always easy for the public to see___use a new invention can be of to human life.
A whose B what C which D that
I think the answers are：
1 D I think Occasions might be places.
2 C I think As is known to sb. is a phrase.
3 I don't know.

What do you think teaches?

 

[Barb_D]

1. This is awkward either way. I'd say you could use where or when. B and C are clearly wrong.
2. The little "is" after "known to us all" makes a different answer correct.
3. Can you eliminate any of them?

 

[billmcd]

Teacher：
1 Occasions are quite rare_____I have the time to spend a day with my kids.
A when B which C what D where Since an occasion is a time during which something happens, "when".

2 _______is known to us all is that the 2008 Olympic Games will take place in BJ.
A It B What C As D which "What"

3 It is not always easy for the public to see___use a new invention can be [STRIKE]of[/STRIKE] to human life. "What"
A whose B what C which D that
I think the answers are：
1 D I think Occasions might be places.
2 C I think As is known to sb. is a phrase.
3 I don't know.

What do you think teaches?

b.