On April 12, 1961,_____27—year—old Yuri Gagarin(尤里.加加林)became the first human to go into_____ space.
----“Don’t be late again , Tommy” ----“OK, _______.”
Jim, ________________read books while you are walking in the street. It’s very dangerous.
_________, and you will be healthier.
--- Sorry, Mr. Liu, I am late again. --- Tara , up earlier next time and you'll be on time.
Come and________ a party with us.