1．(2019·广东湛江调研)Always be grateful to other people’s kindness and show your gratitude through the words that you speak. You will make further progress you express your gratitude in time.
if/once/when 解析：空处所在句的句意：如果/一旦/当你能及时表达你的感激之情(时)，你会取得更大进步。根据语境可知，设空处引导条件/时间状语从句，故填if/once/when。
2．(2019·四川成都诊断)In a talk at Tsinghua University in Beijing, Zuckerberg spoke Chinese for about 30 minutes. his Chinese was far from perfect, the students cheered his effort.
Though/Although/While 解析：后句句意：尽管他的汉语很不完美，但学生们为他的努力喝彩。由句意可知，设空处引导让步状语从句，表示“尽管”，故可用Though/Although/While引导。
3．(2019·郑州第一次质量预测)I was touched that I couldn’t sleep the whole night, and thought about being a teacher in the future.
so 解析：考查副词。根据固定句型so...that...“如此……以至于……”可知，应用副词so。
4．(2019·安徽蚌埠一模)People in Dali are very friendly and honest to you
you are a foreigner or just a local.
whether 解析：句意：大理的人对你友好而真诚，无论你是外国人还是当地居民。whether...or...表示“无论是……还是……”，引导让步状语从句。
