_______useful the information he gave us is !

下列各句中，没有语病的一句是（ ）（3分）

The new traffic rules have been carried out. If people run red lights on roads, they .

___ is left over may be put into the refrigerator, ____ it will keep for two or three weeks.

. Not far from the club, there is a garden, its owner __________ in it ___________ bridge with his children every afternoon.