When I entered the room, I found a little boy _____ on his mother’s knees _____ to draw a picture. [ ]

The winterholiday is coming, but I don’t know where to go to relax myself.—Why don’t youconsider _________to Hainan?

The opening between walls was very narrow; it’s veryhard for soldiers to _______ through

25．Whydidn’t you tell me there wthrough D．shouldn’t havedriven; cross

In December 2008, Obama was _________________