I’m into the video game, it’s hard to think of anything else. All my focus is on finishing 
the story line.
| A．Unless | B．Once | C．Whether | D．Although |
To their surprise, they found the lecture given by the famous professor easy ______.
| A．to be understood | B．to understand | C．understanding | D．understood |
---What have they made up their minds to do during the summer vocation?
--They ______ to cycle around the country on their own.
| A．are determined | B．are decided |
| C．have determined | D．have been decided |
— Did Jack come back early last night?
— Yes. It was not yet eight o’clock ______ he got home.
| A．before | B．when | C．that | D．until |
The hunter insisted that he _____ a tiger and that a searching team ______ to hunt for it.
| A．has seen; be set up | B．had seen; be set up |
| C．saw; would be set up | D．should see; should be set up |
Are you clear _____ what has been taught in this class? That is: Is everything that has been taught in this class clear _____ you?
| A．with; with | B．about; about | C．about; with | D．about; to |