---Does tiredness or inadequate sleep cause dark circles under eyes?---Lack of sleep will _______ making your skin look pale, and this will make your circles look darker.
Mike’s never willing to change any of his opinions. It’s no use ______ with him.
The organization was founded (建立) for the ________ of poor children .
People try to save time by using their own cars, and this ________ creates further problems.
I was about to leave_______ something happened, which attracted my attention.
Our city has experienced _______ this year as it did last year.