He built a telescope ____ he could study the skies in his free time.
through which
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To get the job started,____ I need is your permission.
Your sister _______to visit you quite ofen,didn't she?
My sister wasn't in Paris last month ,so you _____her there.
He had 30 pounds in his pocket ____ he was determined to buy his son a gift.
Tammy: Someone is at the doctor.
Richard: ______.