Student or Learner
Where should I place the adverbs when answering comprehension questions? For instance, the given question is "Where have people been doing research on sleep for thirty years?" Should my answer be "People have been doing research on sleep for thirty years in sleep laboratories."? Or should it be "People have been doing research on sleep in sleep laboratories for thirty years."? Please help me.
Thanks. And what about this one?
"Q: When and where was the first calendar invented? Ans: It was invented more than 2000 years ago in Egypt." Is the answer grammatically correct?