— I don't know_   .
— You can go and ask Jack.

Bill asked_________.
A. where did Jack go just now  
B. where does Jack go j ust now
C. where Jack went just now

We'll have the party____  she comes or not
A. If              B. whether              C. when

—Can you tell me ________ to send this postcard to New York by airmail?
—Let me check. Oh，it’s one dollar.

We don’t know _______ the meeting will be held soon.

Do you know        in Japan?

The policeman asked me ________.
A. where did he live     B. where he lives        C. where he lived

I want to know ______ for the class yesterday morning.

Bob asked me_         .

--Mr. Li, I found a watch on the playground.
--You should try to find out _________
A. whose is the watch     
B. who is the owner of the watch
C. whom does the watch belong to