________that he only started learning it two years ago, his English is excellent.
_______ has been a topic of continual geological research.
The phrase "keeps sellers on their toes" in the passage mostly means "______".
Supporters of free-market globalization point out that_____________________ .
Standing on the tip of the cape,____________________ .
Michael looked deeply hurt and surprised when_____________________ .
It is stated in the passage that____________________ .
We must push the piano to the corner of the hall to_____________________ our party tonight.
The boat was sailing north when a terrible storm_____________ .
Stephanie: "Oh, no! I left my book at home. Can I share yours?" Scott: "______ "
______ one of the most beautiful forms of performance art, ballet is a combination of dance and mime performed to music.