Washington D.C. ______ between Virginia and Maryland on the Potomac River. A. lays. B. lies C. sits D. seats
By the time he was twelve, Edison _______ to make a living by himself.
The two sportsmen congratulated each other _______ winning the match by shaking hands.
Information has been put forward _______ more middle school graduates will be admitted into universities.
She stepped on my foot _______, not _______, which made me angry.
He had to _______ paying the bills because of a lack of money.