We are taking action, but how effective it will remain _______.

On August 12,2009, Typhoon Morakot swept across Taiwan island, _____ a lot of villages _____.

________in the heart of Toronto is the Canadian National Tower , which is often called the CN Tower for short.

This part of the country resembles England  ________ its scenery.

The problem he referred to _____ difficult, but is isn’t at all.