In the United States, Father’s Day falls on ______ third Sunday in _____ June.

He is such an unselfish man. You cannot help but ________ him.

Look at the boy running on the ground. Is it David?—It be him. I saw him go to the teacher’s office just now.

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

Let’s __________ the quiet and beautiful park.