Air, _ __we breathe every day, is around us all the time.
| A．that | B．/ | C．which | D．it |
28. – How did you get to the airport?
-- I got Tom ____ me there.
| A．drove | B．to drive | C．driving | D．Drive |
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 |