(2014·东北三校第二次联考)It is shown that men have________as women do on average while driving according to recent statistics.

Twenty million years ago, Idoho was not the dry place as it is now. ______, it was warm and damp, covered with thick forests.

Don’t blame them any more---this is _____ because they are still young and lack experience.

It was raining, but _________ it was a nice trip.

As is known to all language learners, the newly learnt words will soon be forgotten unless ______ used in everyday communication.