1：他一直努力学习英语HestudiesEnglishveryhard2:在聚会上大家玩得很开心Theyattheparty3：我们已经卖完了所有的食物Weallthefood4：飞机已经起飞很长一段时间了Thepl

Question

1：他一直努力学习英语
He studies English very hard ___ ___ ___
2:在聚会上大家玩得很开心
They ___ ___ at the party
3：我们已经卖完了所有的食物
We ____ ____ ____ all the food
4：飞机已经起飞很长一段时间了
The plane ____ _____ _____ for a long time

Answer 1

1. He studies English very hard all the time.
2. They enjoy themselves at the party.
3. We have sold up all the food.