The girl cycled round the corner so quickly that she lost her ____ , fell off and hurt her legs seriously.

Most students think this book is useful as it ____ all the basic grammar rules they        need to know.  

When you go abroad for further study, you should learn to adapt to the ______ of the destination country.

The comments which he made ______ marketing bothered his boss greatly.

The water company appealed ______ everyone ______ the amount of water used.

Eating too much fat can ______ heart troubles and high blood pressure.

The scenery of Jiuzhaigou Valley _____ the tourists from all over the world.

The Chinese University of Hong Kong, founded in 1963, ____ 50 in 2013．

The farmers expanded their production to meet the increasing demand _____ locally grown food.

Margie shows a very positive attitude ____ her work.