Peru, a country ____ the Pacific coast of South America, gained its independence ______ Spain in 1821.
Every possible ________ advanced technologies to help people enjoy a better life.
We discussed where to go for the weekend, but we decided to stay at home ________.
You ________ come to his office. Our boss won’t be back until next week.
I have made great progress ________ his help. Which of the following is not correct?
It was the first time ________ I ________ face to face with a thunder storm.