Air bags for cars were invented _____ lives. Without them more people would be injured in car accidents.
The old couple used to live deep in the countryside, without easy ________ to shops.
It is ________ challenge for graduates to get ________ job as unemployment is high nowadays.
—I'm sorry I've spilt some tea on the tablecloth.—________;it will wash out.
I am so tired,for I ________ English for 2 hours.
—Shall we go out to the seaside this weekend?—________ Ring me up at any time.