16.The accused did the thing when he told the truth. A. exact B. right C. true D. accurate

17. Some surveys are to get information on attitudes of consumer buying habits and many other topics. A. conducted B. built C. set D. made

18. Their son is noisy and . Sometimes, he makes his parents annoyed.

A. supportive B. confident C. mischievous D. caring

19. There seemed to be a business between the two men.

A. attitude B. sacrifice C. partnership D. announcement

20. At the airport , if you are to get somebody’s attention , you can wave as hard as you can.

A. surprised B. terrified C. frightened D. excited