1．He asked us to ____________(帮助)him in carrying through their plan.
答案：assist
2．The school is only a few hundred yards farther down the road，so it is quite____________(方便)for the children.
答案：handy
3．Those tires are too ____________(磨损的)to be safe，therefore，I advise you to have them changed at once.
答案：worn
