应该

答应 dāying HSK 2 #953

to agree; to promise / to respond; to answer

应 yīng HSK 5 #1,713

should; ought to / to respond; to answer (yìng)

应当 yīngdāng HSK 3 #5,406

should; ought to

反应 fǎnyìng HSK 3 #1,126

reaction / response / to react

适应 shìyìng HSK 3 #2,545

to adapt / to adjust to / to get used to

供应 gōngyìng HSK 4 #5,529

to supply / to provide / supply

该 gāi HSK 7 #129

should / ought to

应付 yìngfù HSK 7 #2,548

to deal with / to cope with / to do something perfunctorily

应得 yīngdé #2,920

to deserve / to be entitled to / deserved

应有 yīngyǒu #8,019

due; deserved; rightful / proper; what one ought to have