ci2

word (noun)

ding4

to reserve; to book (a ticket, a hotel room, etc) (verb)

hua4

dialect; language; speech (noun)

ji4

to calculate; to plan (verb)

ji4

to remember (verb)

ke4

class; course; lesson (noun)

qing3

please (polite form of request); to treat or to invite (somebody) (verb)

rang4

to allow or cause (somebody to do something) (verb)

ren4

to recognize (verb)

shei2

who (question pronoun)