Answer:
concentrate on and become expert in a particular subject or skill.
Answer:
The main difference between past simple and past continuous tense is that:
- we use<u> past simple tense</u> when something happened at some time in past. We also commonly use this tense with past time adverbs (yesterday, last night, two days ago, etc.)
For example: John called his friend yesterday.
- we use <u>past continuous tense</u> if an action occurred in the past and <u>lasted for a period of time.</u>
Example: I was reading a book all day yesterday.
We used past continuous tense because the action of reading lasted for some time (a whole day in this case).
The answer is A. if the essay was suppose to be descriptive then the description or what was being described should have made the reader felt as though they were experiencing it themselves.
