The situations are very disappointing because almost all the rivers and lakes, even seas are contaminated.
_______ 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.
Michael looked deeply hurt and surprised when_____________________ .
______ his brother, Mike is active and friendly.
Stephanie: "Oh, no! I left my book at home. Can I share yours?" Scott: "______ "
The boat was sailing north when a terrible storm_____________ .
Supporters of free-market globalization point out that_____________________ .
Standing on the tip of the cape,____________________ .
Only one of our gifted students______to participate in the final competition.
She asked me______I was looking at.