I don't know why you're so concerned—it isn't your problem______.
Privatecarsarerequiredtotaketurnsoffroadsoneoutoffive weekdays___thetrafficpressure.
_______ I accept the gift or refuse it is none of your business.
John once worked in a remote mountain village school, which is ______ only on foot.
In our class there are 46 students, ______ half wear glasses.
— Guess what! Alice has failed in the exam. —_____? She is second to none in English in our class.