题目内容
6．I felt very nervous on the plane because I ________ before．（ ）| A． | hadn't flown | B． | haven't flown | C． | didn't fly | D． | wouldn't fly |
分析 在飞机上我感到很紧张，因为以前我没有飞过．
解答 答案：A．根据"I felt very nervous on the plane because I ________ before"中主句用的是一般过去时，原因状语从句的动作发生在主句的动作之前，发生在过去的过去，故用过去完成时，过去完成时的构成：主语+had+动词的过去分词．fly的过去分词是flown，故选A．
点评 本题考查过去完成时，要掌握过去完成时的意义和构成，掌握不规则动词的过去分词．
练习册系列答案
百年学典课时学练测系列答案
相关题目
20．I heard Tom ________ when I walked past his room yesterday．（ ）
| A． | sing | B． | singing | C． | to sing | D． | sang |
14．By the time she got there，the party for five minutes．（ ）
| A． | began | B． | begun | C． | had begun | D． | had been on |
1．Just now we heard that Mr．Brown and his assistant __________ to Europe to take over the new job．（ ）
| A． | have gone | B． | will go | C． | went | D． | had gone |
11．This is my friend，Cindy Brown．You can call Cindy．（ ）
| A． | me | B． | her | C． | him | D． | them |