题目内容
17.The studentswere writing(write) busily when Miss Brown went to get a book she had left in the office.分析 当布朗小姐去取之前放在办公室的书的时候,学生们正忙着写字.
解答 答案是were writing.
本题考查语境中选用所给词的恰当形式;状语从句(即when…)中动词是过去时,主句动作和从句动作同时发生也应用过去时态;根据表达意义,当老师去取书时学生"正在写",所以主句动作应该用过去正在进行时.故答案是were writing.
点评 本题是要求用所给词的适当形式填空,解题时首先根据句子的结构考虑句中需要的词性;其次,关注所选词的形式的变化:如果是谓语动词关注时态、语态和数的变化;如果是非谓语动词要联系非谓语的基本用法判断非谓语的形式.如果是名词关注单数和复数的选用等.

练习册系列答案
相关题目
7.There is someone playing the guitar over there.Let's go and listen,shall we?Free entertainment,________.( )
A. | anyway | B. | though | C. | therefore | D. | somehow |