1．The question is how to cross the river.
2．I recognized her immediately (immediate) I saw her.
3．He has got used to going (go) there by bike.
4．Will you see to the arrangements for the next meeting?
5．The long hot summer was at last at an end.
Ⅱ.单句改错
1．I really hope that the boy can soon be used to live in the mountain village after he gets there.live→living
2．A majority of the water we use every day are groundwater.are→is
3．Absorbing in watching TV，he did not notice me come into the room.
Absorbing→Absorbed
4．We must see to that all people are equal before the law.to后加it
5．While most of us have met him，we are not too familiar to him.to→with
