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1£® The soldiers working in earthquake­hit area have tried their best to save every possible life, risking ________ their own.

A£®losing                        B£®to lose

C£®lost                          D£®being losing

2£®To improve our oral English, we should practice ________ it every day.

A£®speak                         B£®to be spoken

C£®speaking                  D£®to speak

3£®It is no ________ arguing with the stubborn man because he will  never change his mind.

A£®use                           B£®help

C£®time                      D£®way