Watashi ___ gakusei desu.
wa (topic marker)
Watashi ___ hon ___ arimasen.
wa / ga
Dare ___ kimasu ka?
ga
Ashita ___ eiga o mimasu.
wa (As for tomorrrow)
Kuruma ___ arimasu.
ga
Tanaka-san ___ sensei desu.
wa (As for Tanaka…)
Watashi ___ gakkoo de benkyou shimasu.
wa
Inu ___ imasu.
ga
Heya ni neko ___ imasu.
ga
Nihon ___ ikitai desu.
ni
Doko ___ ikimasu ka?
e
Tanaka-san ___ gakkoo ___ ikimasu.
wa / e
Gakkou ___ ikimasu.
ni / e
Watashi ___ Tokyo ___ ikimasu.
wa, e (as for me → to Tokyo)