Вот ваши предложения с заполненными пропусками, объяснениями выбора времен:
Look! Steve is dancing with another girl.
– Действие происходит сейчас, поэтому используем Present Continuous.Joe said something funny and we all laughed.
– Прошедшее время, действие завершено, Past Simple.Nick works from early in the mornings until late at night every day.
– Регулярное действие, привычка, Present Simple.I was surprised that Allan did not win.
– Выражение удивления в прошедшем, Past Simple с отрицанием.Alex was looking for the treasure, but he did not find it.
– Прошедшее длительное действие и результат в отрицании, Past Simple.Richard offered Kate something to drink, but she said she wasn't thirsty.
– Прошедшее событие, Past Simple.Tom is much shorter and weighs much less than Jack.
– Общая характеристика, регулярное действие, Present Simple.We are staying at home because it's raining.
– В данный момент или временно, Present Continuous.James is writing a love letter to Cindy, but never gave it to her.
– Сейчас он занимается письмом, Present Continuous; действие в прошлом, Past Simple.When was the last time you celebrated Christmas with your whole family?
– Вопрос в Past Simple о завершённом действии.Bill typically finishes his work at 2:30.
– Регулярное действие, Present Simple.Roy does not need to come into the office on Mondays.
– Регулярное, привычка, Present Simple.In Japan, the new school year begins in April.
– Регулярное событие, Present Simple.Could you please be quieter? David is sleeping.
– Действие в процессе прямо сейчас, Present Continuous.Neil can get there in ten minutes if he drives fast.
– Общая возможность, Present Simple.Why did you decide to name your son Simon?
– Вопрос о прошлом, Past Simple.Sam washes his car at least once a week.
– Регулярное действие, Present Simple.Do you watch the news on TV every day?
– Регулярное действие, Present Simple.How often do you look at yourself in the mirror?
– Частота, Present Simple.Edward painted that picture last summer.
– Прошедшее завершённое действие, Past Simple.The girl jumped to her feet and left the room.
– Прошедшее событие, Past Simple.She feeds her dog the same thing that she eats.
– Регулярное действие, Present Simple.Lisa visits Randy every time that she's in the United States.
– Регулярное событие, Present Simple.Do you want to hear about what I did last summer?
– Вопрос о прошлом действии, Past Simple.Alex got into bed and turned off the light.
– О прошедшем событии, Past Simple.Do you prefer green or black tea?
– Вопрос о предпочтениях, Present Simple.Do you know anybody who can teach my kids French?
– Общий вопрос, Present Simple.Look at the boy and the dog that are running over there.
– Действие происходит сейчас, Present Continuous.Tom said that he hated the song we sang last night.
– Прошедшее событие, Past Simple, глагол "sing" в прошедшей форме.The weather was cold and it ** rained** a lot.
– Действие в прошлом, Past Simple.
Если нужно более подробно по каким-либо предложением или объяснением — скажите!