1.   Cook over low heat until mixture becomes hot and juices begin to come out of tomatoes.

2.   One afternoon that spring the weather became inordinately hot, boiling up to midsummer levels.

3.   The high sugar and alcohol content means that a pudding can become dangerously hot in a microwave.

4.   The mass of uranium soon becomes so hot that it melts and disperses, a phenomenon called meltdown.

5.   If too much publicity is given to the theft of important works, the works will become too hot to handle and be destroyed.

6.   By the evening it had become unbearably hot.

7.   Do not let the bowl become too hot however, or the mixture will cook before it can thicken.

8.   Do not allow it to become too hot or the mixture will cook and not expand properly.

9.   Her face became hot with embarrassment beneath the cynical gleam in his heavy-lidded eyes.