根据句意及首字母填写单词。 小题1:Do you know the c____ answer to the math p

根据句意及首字母填写单词。
小题1:Do you know the c____ answer to the math problem?
小题2:He was so t_____ that he drank plenty of water in one breath.
小题3:The man is good at playing Chinese c______
小题4:Many foreign t______ come to China every year.
小题5:The Red Army s________ in arriving in Gansu Province in 1936.