______ smoking is a causative factor of many diseases, there is no ban on tobacco advertising.
_______ has been a topic of continual geological research.
We must push the piano to the corner of the hall to_____________________ our party tonight.
The examination was not very difficult, but it was_____________________ long.
Supporters of free-market globalization point out that_____________________ .
Stephanie: "Oh, no! I left my book at home. Can I share yours?" Scott: "______ "
He_______________us but he was short of money at the time.
Michael looked deeply hurt and surprised when_____________________ .
Education in many countries is compulsory________the age of 16.
Tom: "___________________ " Mike: "I won't say no!"
She asked me______I was looking at.