16. After the guests left， she spent half an hour ________ the sitting-room.

A) ordering B) arranging C) tidying up D) clearing away

17. I was ________ the point of telephoning him when his letter arrived.

A) to B) on C) at D) in

18. A lorry ________ Jane‘s cat and sped away.

A) ran over B) ran into C) ran through D) ran down

19. Those gifts of rare books that were given to us were deeply ________.

A) appreciated B) approved C) appealed D) applied

20. Niagara Falls is a great tourist ________， drawing millions of visitors every year.

A) attention B) attraction C) appointment D) arrangement

16-20 CBDAB