When talking to British people， we should （避免） subjects like age， weight or money．
用所给单词的适当形式填空．
To our joy，Tu Youyou，a Chinese woman scientist，won the Nobel Prize in her （eighty）．
When Li Ming （return） to his hometown last year，he visited his old head teacher．
She wants to become a famous （sing） when she grows up．
I didn't watch TV last night， because my TV set was （break）．
May I use （you） mobile phone，please？I left my phone at home．