--- Where did you spot the murderer?
--- It was in the cinema __________ we watched Tran formers that I saw him. I can’t remember when.
| A．that | B．when | C．where | D．on which |
All his free time is ______ by volunteer work, but he feels it meaningful.
| A．put up | B．given up |
| C．picked up | D．taken up |
The athletes competed ________ each other for gold medals in the Olympic Games.
| A．against | B．between |
| C．for | D．over |
--Can a plane fly ________ the Atlantic Ocean?
--Yes, but it needs to go________ the clouds for hours.
| A．through; across | B．across; through |
| C．across; across | D．through; through |
The room ___________ window is open is mine.
| A．which | B．its |
| C．that | D．whose |
Don’t turn on the radio __________ your mother allows you.
| A．unless | B．because |
| C．if | D．and |