下列各句中加点字活用类型与其他三项不同的是是、

My parents live in a small village. They always keep candles in the house_____there is a power out.

he past 20 years, the Internet hashelped change our world in _____way or another for the better.

The purpose of new technologies is to make life easier, ______ it more difficult.

Mom, myfriends, Dave and Jack.