To get a better view of the stage, ____________________.

_________ smoking, he would not have got cancer in the lung.

Entering the room,I found Mary____ at the desk and____ a letter.

It is one of the funniest things____ on the Internet so far this year.

____that we should look after the three dogs three times, my mother left home.

The programme was so exciting that the children kept their eyes____ on the screen.

-- What’s the matter with you?
---____ the window, my finger was cut unexpectedly.

--You were brave enough to raise objections at the meeting.
---Well, now I regret____ that.

_____ by the clear waters, this forest provides visitors with a wonderful chance to see some endangered native birds in the wild.

Play, often ______ as an activity for younger children, is still important in the social development of teenagers.