jessephine
New member
- Joined
- Nov 4, 2010
- Member Type
- Student or Learner
I've been told that(by my classmate) It's helpful to improve their skills is wrong,so is it correct to replace this sentence by It's helpful in improving their skills?
When and where to use these two phases?And how to differentiate them?
Please give some examples to explain it.
When and where to use these two phases?And how to differentiate them?
Please give some examples to explain it.
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