二、单项选择：（共20 小题；每小题0.5分，满分10分）
18. --- No words are strong enough to express my thanks for the great efforts you made to rescue my son.
--- _______. It’s our duty.
A. Don’t say it any more B. Don’t mention it
C. It won’t bother us D．That’s not right
19. I heard that the famous actor died of heart disease suddenly. ______ news came as ______ great shock to us.
A. The ; / B. / ; a C. The; a D. / ; /
20. My money ________. I must go to the bank to draw some of my savings out before I’ve got none in hand.
A. has run out B. runs out C. was running out D. is running out
21. It is said that dogs will keep you ______ as long as you want when you feel lonely.
A. safety B. house C. company D. friend
