I study really hard ________ I can make my dream come true.

I should in this talent show, because I really want to be the winner.

they are talking to each other!—Yes. They are really happy to see each other.

I used to quarrel a lot with my parents，but now we just fine together．

On April 12, 1961，_____27—year—old Yuri Gagarin(尤里.加加林)became the first human to go into_____ space.