z7655431
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- Jan 12, 2016
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- Student or Learner
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- Taiwan
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"Scientists said that the wall paintings which were found in a cave in Southern America can be dated back 4000 years ago." (from my teacher's handout)
Is it correct? If not, how should I revise it?
Here are my revised versions:
a. Scientists said that the wall paintings which were found in a cave in Southern America can be dated back 4000 years.
b. Scientists said that the wall paintings which were found in a cave in Southern America can be dated back to 4000 years ago.
c. Scientists said that the wall paintings which were found in a cave in Southern America can be dated to 4000 years ago.
Are they all correct?
Thanks!
Is it correct? If not, how should I revise it?
Here are my revised versions:
a. Scientists said that the wall paintings which were found in a cave in Southern America can be dated back 4000 years.
b. Scientists said that the wall paintings which were found in a cave in Southern America can be dated back to 4000 years ago.
c. Scientists said that the wall paintings which were found in a cave in Southern America can be dated to 4000 years ago.
Are they all correct?
Thanks!