--- Why did you buy two pairs of shoes? --- It was so hard to choose which was________, so I took them both.
You will achieve nothing ________ you work hard.
—Ipreferspeaking to listeningin English learning. —Oh, really? I think you should do well in______ of them.
—Do you know ______ woman in red? —Yes, she’s a professor of_________ university.
— ______ have you been away from your hometown, Jane? — Since twelve years ago.
Hurry up! Our friends ______ for us now.