English has become the most wildly spoken language in the world ______ its special role as an internationallanguage.[ ]

Some of the volunteers hope to continue ________ in the village after_______ some time with the villagers.

The headmaster will __________ a speech tothe visiting foreign guests this afternoon.

Where to hold the 2012 Olympic Gameswas a subject ______ the Olympic Committee argued for a long time, and finallythey voted for London.

Whenever I met her, _________ was fairly often, she greeted me with a sweet smile.