Вставить пропущенные слова

1) If you **do not eat** now, you **will be** hungry later. 2) She **would have been** sad if he **had left**. 3) If you **leave** ice in the sun, it **melts**. 4) If we **go** to the show, we **will have** a good time. 5) If you **mix** black and white, you **get** grey.