Whatever the cause of the heat may be, we do know that the earth gets hotter down we dig.
| A．further | B．the farther | C．the farthest | D．the furthest |
29. These wild flowers are so special that I would do ____ I can to save them.
| A．as many as | B．that | C．as much as | D．Whichever |
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 |