dialogue: W: Do you think our headmaster is going to build a new lab building? M: I've no idea. He may have the plan. But he hasn't spoken to us teachers about it. W: Do you think it possible that it will happen? M: Of course. Right now, our old lab building can't satisfy the increasing need of teaching. It's too small and not in proper condition. W: Why don't we build a new one as soon as possible? M: There may be some problems with it. W: What's the problem then? M: As far as I know, money is. It's not likely to be solved soon, I guess. W: I believe our headmaster will ask the local government to help us build a new one. M: I think so. It's quite likely that the decision will be made before the end of this term.
question: Why can't they build a new one as soon as possible?
choice: They don't have enough funds. Some teachers disagree with the plan. The headmaster hasn't made his decision.
answer: They don't have enough funds.