It was not until 1920 ______ regular radio broadcasts began.
| A．while | B．which | C．that | D．since |
Though he had often made his little sister __________，today he was made __________ by his little sister.
| A．cry； to cry |
| B．crying； crying |
| C．cry； cry |
| D．to cry； cry |
The room is too small and it is not fit __________.
| A．to be worked in |
| B．to work in |
| C．to work |
| D．to be worked |
The Prime Minister refused to comment on the rumor that he had planned to __________.
| A．discharge |
| B．dismiss |
| C．resign |
| D．resume |
I don't mind __________ the Internet as long as it is not too late.
| A．you to surf |
| B．your surfing |
| C．your surf |
| D．your to surf |
Please tell me the way you thought of __________ the garden.
| A．taking care of |
| B．to take care of |
| C．looking after |
| D．how to look after |