kadioguy
Key Member
- Joined
- Mar 4, 2017
- Member Type
- Student or Learner
- Native Language
- Chinese
- Home Country
- Taiwan
- Current Location
- Taiwan
a. The city has changed greatly since 2012. [O]
b. I have changed my address since last year.[O]
[FONT=Tahoma, Calibri, Verdana, Geneva, sans-serif]c. I have graduated from college since 2011. [/FONT][×]
[FONT=Tahoma, Calibri, Verdana, Geneva, sans-serif]d. I have graduated from college since then. [/FONT][O]
(Quoted from an English grammar book)
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Why is (c) wrong? Do you agree with it? Could you tell me the reason?
b. I have changed my address since last year.[O]
[FONT=Tahoma, Calibri, Verdana, Geneva, sans-serif]c. I have graduated from college since 2011. [/FONT][×]
[FONT=Tahoma, Calibri, Verdana, Geneva, sans-serif]d. I have graduated from college since then. [/FONT][O]
(Quoted from an English grammar book)
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Why is (c) wrong? Do you agree with it? Could you tell me the reason?