—Look at this, what a perfect item! $100 is my last offer.—OK. .
—Why is Mr. Li so happy this morning? —Because he was honoured with a(n)______ for excellence in teaching.
________ you are interested in astronomy, you can read the book.
After the new technique was introduced, the factory produced ______ tractors in 1998 as the year before.
—Do you know the tall man ______ to Mr. King over there?—Sorry, I don’t know him.
. Can you ______ your sister from that group of girls?