I think that’s the only way we can think of ______ the math problem.
| A．solve | B．solves | C．to solve | D．solving |
25. ---You ____ him more help, even though you were very busy.
---Well, now I regret not.
| A．might have given | B．may give |
| C．must have given | D．should give |
24. ---The last one _______ pays the meal.
---Agreed!
| A．arrived | B．arrives | C．to arrive | D．arriving |
23. Where to get the materials and how to get them ________ at the meeting.
| A．have not discussed | B．have not been discussed |
| C．has not discussed | D．has not been discussed |
22. Hurry up, _______ you will miss the early bus.
| A．otherwise | B．if | C．and | D．but |
---Shall we meet at 6:00 or 7:00?
---________.
| A．Any time is OK | B．At any time |
| C．Yes, at 6:00 | D．Well, either time will do |