Some questions please

1_ are these sentence correct grammatically?

大夫告诉你那种药吃几片？  “大夫”和“医生” have the same meaning, while “大夫” is often used in ancient times, but it's OK. "医生” is more common in modern Chinese.       用“片”来形容药也是可以的；这句话没有什么大的语法问题；
你会不会试体温表？ 你会不会用体温表？
你想 写《和》字难学吗   你觉得“和”字难写吗？     you should use this punctuation " " , this one 《》is used for the name of book.

2_What is the difference between these phrases?

地铁里
地铁上

They are the same.

Some questions please

1_ are these sentence correct grammatically?

大夫告诉你那种药吃几片？-->醫生有告訴你那种药吃几顆？   药有很多種類,常用“顆”,“包”,“帖”
你会不会试体温表？
你想 写《和》字难学吗 -->你認為《和》字难学吗？

2_What is the difference between these phrases?

地铁里 
地铁上

兩種說法都可以,代表正在搭地铁