TAKOBOTO

? (basic question particle)
Is this your book?

これはあなたのほんですか。

Is this your book ?

いえにかえりましょうか。

Why don't we go home ?

ひとつしつもんをしてもいいですか。

May I ask you a question ?

きょうはとりにくをかいましたか。

Did you buy chicken today ?

か has many uses but it can be used as a question mark, just like what we have in English:

Did he eat dinner?
彼は夕方ご飯を食べましたか。

Did he go to Japan last year?
来年彼は日本に行きましたか。

Sakuratree

N.B. Commonly [name-san] would be used in place of [anata]

Amatuka

Placed on the end of a sentence.

S = sentence

Amatuka

I see question mark "?" after particle ka in several japanese writing on internet.

Ramesh

better to romanize as {kore WA anata no hon desu ka}, as in this case it is a postposition and is pronounced as wa...

sandra

Notes has "rainen" (来年), maybe it should be "sakunen"? (昨年)
[Did he go to Japan last year?]

Pete