80.It was not until 1920 ______ regular radio broadcasts began.
| A．while | B．which | C．that | D．since |
---I am tired of the food ________ in the dining hall.
---Then why not try __________ in a restaurant for a change?
| A．being cooked, to eat |
| B．having been cooked, eating |
| C．cooked, eating |
| D．to be cooked, to eat |
---How do you like the Art Festival?
---Fantastic. It must be the most important and fascinating_________ in the year
| A．affair | B．business |
| C．event | D．incident |
In the mobile message, Sarah told me that last night was the first time she_________ a film in the year.
| A．saw | B．has seen |
| C．had seen | D．would see |
It is almost three months __________ we became a senior student of Bashu Secondary School.
| A．before | B．since | C．after | D．when |
A great hall has _________ in order to ease the problem of dining congestion(拥堵) in our school.
| A．put up | B．taken up |
| C．gone up | D．looked up |