我刚才讲的这些，星期四的考试不会考的。
What I've just said here won't come up on the test on Thursday. OK.
On the spot就是立刻，当场的意思。 所以你刚才的意思就是教授在考试的时候当场给题目，你就得立即上台讲两分钟。
LL: Oh, to do something "on the spot" is to do it immediately - right then and there.
如果你能继续努力学习，你将会通过这次的考试 3。刚才我们要是没有这张地图的话，我们就迷路了 4。汤米没有车。
You will pass this exam, if you continue studying hard. 3, We would have got lost just now, if we dont have this map. 4, Tommy havnt got a car.
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