If we ________ this speed, we will finish the task ahead of time.
| A．hold up | B．break up |
| C．keep up | D．take up |
29．His humorous closing speech was a welcome addition to the ______dull meeting．
| A．therefore | B．meanwhile | C．otherwise | D．Thus |
28．The government had hoped to draw as much attention as possible to this problem but it didn't ______ that way．
| A．work out | B．give out | C．go out | D．pick out |
27．The students wonder______ good the course will do to their future jobs．
| A．which | B．what | C．whether | D．Why |
26．He never regretted the anxious hours he had had ______ for the missing papers．
| A．search | B．searching | C．searched | D．to search |
25．At present, the butter factory is still polluting the river though it ______ to stop.
| A．ordered | B．has ordered |
| C．will be ordered | D．has been ordered |