Which one is correct between 'Who is richer than who?' or 'Who is richer than whom?' Which one is correct between 'Who is richer than who?' or 'Who is richer than whom?' Thanks

Can someone correct this? Thanks in advance :) I did the translation, but I wasn't sure about the accuracy. Madonna plans to have concert tour again Los Angeles - Madonna is coming back to open a concert again in this summer which is the first time in 8 years. It is her first concert tour since she became a mother. The 42-year-old pop music superstar who recently got married with the English director named Guy Ritchie is going to open the concert tour in 19 cities in Europe and America. SFX Entertainment Promoter said yesterday that the concert would be held on 5 June in Coloane city. The promoter promised that Madonna's The Drowned World Tour concert would be the greatest show of the singer profession - Reuters Thank you very much :)

Which one is correct between 'He is normal height' & 'He has normal height' ? what's the difference? Which one is correct between 'He is normal height' & 'He has normal height' ? what's the difference? Thanks in advance :)

When I was young... When I was young, an art teacher always taught me that when we used a pencil to draw a picture, we must not use an eraser. At that time, I didn't quite understand the teacher’s purpose. But I only knew that when I drew a picture, the lines got distorted. I wished they were straight and beautiful. But every time I took up the eraser to erase the picture, my teacher would always remind me of that rule. I finally chose to modify that picture from imagination. For example, if I have intended to draw a human face but I might be careless that I drew too big eyes, I would have tried to change those round eyes into glasses instead. Even though at that time I didn’t understand why wasn’t I allowed to use an eraser, and although I never thought of drawing a human face wearing glasses before, I got a human face as I wanted. Plus, I was proud that I could draw that picture with confidence and didn’t need to use an eraser to erase a picture at all.

3 persons or 3 people? for example, we have 3 persons/ 3 people to help do this test. Thanks

Be it so means? what does 'be it so' mean?

It's an article I translated it from Thai to English. **I wanna know the correction of this in terms of grammar, using vocabularies and etc.. All antioxidants may not be good The study on guinea pig showed that some antioxidants were not good for health in resisting cancer. Taiwanese researcher said. Kuan-Chou Chen, the researcher from Taipei medical university of Shuan-Ho hospital, informed USFDA and other health associations in evaluating safety of antioxidants which were from a new plant since it was found from the result of the experiment on the guinea pig that there were two kinds of substance which made cancer even worse. These two substances were used in making herbs for treatment and for supplementary food. This research found that the two kinds of antioxidants which were found in this plant called quercetin and ferulic acid stimulated to cause kidney cancer in the guinea pig which had diabetes. “Our research found that quercetin stimulated to cause kidney cancer even if it was not directly. Some scientists believed that quercetin shouldn’t be used to protect against disease for healthy people until it was surely not the cause of cancer” Chen said. The researchers also said that the quercetin substance could be found in onion and black tea, as for ferulic acid could be found in corn, tomato and rice bran. Having supplementary food or any antioxidants should be in doctor’s advice; you shouldn’t buy and have them by yourself. ***Thank you in advance for correcting my work :)

What are the differences between 'another' and 'other'? What are the differences between 'another' and 'other'? and how to use them?