下列各句中，没有语病的一句是（ ）

The international community should make every effort together to the barriers of fear and unfriendliness which divide the two countries.

The picture was put in the comer of the room, nobody _____in it. [ ]

One thing about child raising to be certain of _______ that the longer the child is with its mother, the ______.

You can ________a boat to Tower Bridge of London.