It was 1920 ______ regular radio broadcasts began.
---If you like the new house, I suggest you buying it.---But it's really too expensive. I can't______ it.
At the beginning of the party,______ of the guests was given a piece of paper.
The music he is playing sounds_____.
— I like football.— ______ my sister and me.
It made all the Chinese happy _____ China succeeded in sending up the first manned spaceship.