It’s the love and responsibility that have driven him to ____ manyhardships and survive

．Nowadays meteorologists can make good forecast for 3 or 5 days ．Perhaps soon they may be able to do that for a week or ____．

Having a walk after supper is certainly good for the old people, but it remains ______ whetherthey will enjoy it.[ ]

’s knee pain ______ from such activities as running, hikingand horse riding.

Recently, employees at the Shanghai Metro’s Railway Station Stop have been busy learning dialects from other parts of the country, ___________ aims to provide better service to travelers from outside the city