8.He has learned English for five years before he came here.
9.My Mom has gone for a walk before I got up.
10.She realized that She had left her homework at home since She arrived the bus stop.
He had studied English for five years before he came here.
My mother had already gone out for a walk before I got up.
She realized that she had left her homework at home when she arrived at the bus stop.
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8. He had studied English for five years before he came here.