Identify the one underlined word or phrase - A, B, C or D - that must be changed for the sentence to be correct

A. in

B. hearing

C. have made

D. much

A. is

B. to

C. Mai's family

D. but

A. going

B. can't make

C. a university

D. go

A. for

B. has waited

C. at

D. me

A. his help

B. if

C. calling

D. Does