题目内容
Fill in the blanks with proper propositions or adverbs.
(用适当的介词或副词填空。)
Bob Black is sitting ________ his desk and working his way ________ his paperwork.
答案:at,through
练习册系列答案
相关题目
题目内容
Fill in the blanks with proper propositions or adverbs.
(用适当的介词或副词填空。)
Bob Black is sitting ________ his desk and working his way ________ his paperwork.