After a long walk, Mary’s legs _____ and she couldn’t run any further.
| A．gave out | B．broke out | C．tired out | D．stuck out |
The coasted areas have mild winters, but ____ the central plains become extremely cold.
| A．by contrast | B．with contrast | C．contrast | D．contrasting |
In a way it was a(n)______ to know exactly what we were up against.
| A．effect | B．means | C．relief | D．suggestion |
The programme was so exciting that the children kept their eyes____ on the screen.
| A．to fix | B．fixed | C．to be fixed | D．fixing |
-- What’s the matter with you?
---____ the window, my finger was cut unexpectedly.
| A．Cleaning | B．To clean | C．While cleaning | D．While I was cleaning |
--You were brave enough to raise objections at the meeting.
---Well, now I regret____ that.
| A．to do | B．to be doing | C．to have done | D．having done |