The boy is ______ my sister, so he sits in front of her.

The film brought the hours back to me _______ I was taken good care of in that village.

My most devoted friend, Professor Yang, _______ often go hiking when he lived in the mountain that was covered with forest.

man had expected to see all his children when in hospital, but _____ came tosee him.

He was mad at ________ in the English exam.