I hadn't understood his directions; however, I asked him to repeat what he’d said.
=> therefore
_______ has been a topic of continual geological research.
The Lake District,____________________ was made a national park in 1951, attracts a large number of tourists every year.
______ his brother, Mike is active and friendly.
We must push the piano to the corner of the hall to_____________________ our party tonight.
The phrase "keeps sellers on their toes" in the passage mostly means "______".
There has been a great increase in retail sales,_____________________ ?
Education in many countries is compulsory________the age of 16.
Stephanie: "Oh, no! I left my book at home. Can I share yours?" Scott: "______ "
In spite of her abilities, Laura has been_____________________ overlooked for promotion.
Michael looked deeply hurt and surprised when_____________________ .