____ to light for a long time, the potatoes turned green.
| A．Introduced to | B．Exposed to | C．Linked to | D．Connected to |
29. The government has taken some measures to solve the shortages of electricity, but it may be some time _______ the situation improves.
| A．since | B．when | C．unless | D．before |
35. ---I’m sorry I’m late. I got held up in the traffic on my way here.
---___________________.
| A．Don’t be late next time | B．You should be blamed |
| C．It doesn’t matter. I’m also late | D．Never mind. Come and sit down |
32. “John, let us slip into our beds, and be there when Mother comes in, just as if we _______ away”, said Wendy.
| A．have never been | B．will never be | C．was never | D．had never been |
30. At 60 the famous film star Dustin Hoffman is at a point in his art career _______ the chances are narrowing but the roles seem stronger.
| A．where | B．that | C．which | D．when |
28. Li Ping is the only one of the students whom I think _______ fit for the job.
| A．being | B．is | C．to be | D．be |