题目内容
根据句意从括号中选择正确的单词并填写在空白处。
Never forget ________(to say, saying)‘Thank you’after receiving help.
答案:to say
练习册系列答案
相关题目
题目内容
根据句意从括号中选择正确的单词并填写在空白处。
Never forget ________(to say, saying)‘Thank you’after receiving help.