题目内容
14．Susan went to the space museum yesterday．（用twice代替yesterday改写句子）Susanhasbeen to the space museum twice．
分析 --苏珊昨天去了太空博物馆．
--苏珊已经去过太空博物馆两次了．
解答 答案：has been．考查时态．twice两次，结合语境可知，应该是已经去过两次了．用现在完成时态．have been表示去过某地，已经回来了．主语是Susan单数，因此用has been．
点评 本题考查现在完成时态，现在完成时态的构成：助动词have/has+动词的过去分词．要结合语境，根据要求，选择合适的形式完成试题．
练习册系列答案
阅读快车系列答案
相关题目
4． afraid of the dog．It's very friendly to people．（ ）
| A． | Not do | B． | Don't do | C． | Don't be | D． | Not be |
5．The more sweet food you eat，the ________ you will become fat．（ ）
| A． | easily | B． | easier | C． | more difficult | D． | more easily |
2．We often come over our friends'homes without them first．（ ）
| A． | call | B． | calling | C． | visit | D． | visits |
6．My grandma likes the big house _____ a beautiful garden．（ ）
| A． | with | B． | have | C． | has | D． | for |
4．-Did you watch the animal show yesterday？
-No．We were to catch the last bus．（ ）
-No．We were to catch the last bus．（ ）
| A． | too early | B． | too late | C． | late enough | D． | early enough |