Public service ads, also PSAs, often _________ for free, _________ to educate people about health, safety or any other problem that affects public welfare.
George Orwell, ______ was Eric Arthur, wrote many political novels and essays.
Look out! Don’t get too close to the house ______roof is under repair.
The doctor ______ is leaving for Africa next month.
On my way home I met a girl ______ you talked with in the library yesterday.
The famous basketball star, ______ tried to make a come back, attracted a lot of attention.