In American there are more households with pets than ____ with children.
| A．those | B．these | C．ones | D．that |
27. We haven’t settled the question of ____ it is necessary for him to study abroad.
| A．if | B．where | C．whether | D．That |
26. --- I don’t suppose the police know who did it.
--- Well, surprisingly they do. A man has been arrested and ____ now.
| A．has been questioned | B．is being questioned | C．is questioning | D．has questioned |
25. Sara said that she had to finish the experiment_____ week.
| A．this | B．that | C．next | D．the next |
24. He saw a notice at the entrance ____ , “No spitting”
| A．read | B．reads | C．is read | D．Reading |
23. --- Where ____ the recorder? I can’t see it anywhere.
--- I ____ it right here. But now it’s gone.
did you put; have set up B. have you put; put
C. had you put; was putting D. were you putting; have put