It was not until 1920 ___ regular radio broadcasts began.
| A．while | B．when | C．that | D．since |
The red flag looks extremely beautiful the blue sky and white clouds.
| A．through | B．against | C．across | D．beyond |
—Wang Meng won an 0lympic gold medal in the women’s l000m final of speed skating.
—！
| A．Congratulations | B．Cheer up | C．Good news | D．A pleasure |
Pointing to the house on ______ roof grew lots of bush, the old man told me that was ______
I would stay.
| A．its ；what | B．whose ；what | C．whose ；where | D．its ；where |
---- I don’t want to move to that city. It is heavily polluted.
---- Pollution is common. The city here is ______.
| A．no less clean | B．no clean | C．no cleaner | D．not less clean |
Although I’ve never worked for a bank before, I feel quite ______ there because I’m used to dealing with figures.
| A．at peace | B．at home | C．at sea | D．at will |