Many kinds of help ________ by plane or by train to the area ever since the earthquake hit it.
He had been ill for a long time and _________ he was left behind in his work。
It was impossible to avoid _____ by his opinion。
With so many difficult problems ______, the newly-elected president, Obama, is to have a hard time。
________ around the Water Cube, we were then taken to see the Beijing National Stadium, known as the Bird’s Nest。
On seeing the wonderful sculpture,everyone present_______ a cry of surprise。