Why haven’t you posted the letter?— I _______ to but I forgot about it.[ ]

______, a man who expresses himself effectively is sure to succeed more rapidly than a man whose command of English is poor.

There were dirty marks on her trousers she had wiped her hands[ ]

ecret of nature, they young scientisthas little time for entertainment.

I’m sorry I got caught in the traffic；_________, I could have been here sooner [ ]