FORM/USE: 'THE THING/ FACT/ POINT/ PROBLEM IS (THAT)'

关键是，我们的预算已经不够了。

The ___thing is that we've already run out of budget.

事实是，绝大多数顾客并不了解这个产品的全部功能。

The ___fact is that most customers don't know all the features of this product.

关键是，即使提案通过，我们也还需要时间执行。

The ___point is that even if the proposal passes, we'll still need time to implement it.

问题在于，这个系统需要先升级硬件才能运行。

The ___problem is that the system needs a hardware upgrade before it can run.

原因是他没有提前申请，所以错过了名额。

The ___reason is that he didn't apply in advance, so he missed the quota.