carla guaraldi
Member
- Joined
- Apr 14, 2004
- Member Type
- Student or Learner
- Native Language
- Italian
- Home Country
- Italy
- Current Location
- Brazil
Hi everybody,
'Since all drugs need to be tested against placebos there is considerable research which prove they are beneficial.'
What does tested against mean?
'All I am asking is that you believe it is possible by you."
What does it is possible by you mean? I have not understood the use of BY in the sentence.
Can you help please?
Thank you
'Since all drugs need to be tested against placebos there is considerable research which prove they are beneficial.'
What does tested against mean?
'All I am asking is that you believe it is possible by you."
What does it is possible by you mean? I have not understood the use of BY in the sentence.
Can you help please?
Thank you