Some new airports _____________ in the west of our country. It will be very convenient to go there.
A. built B. will build C. were built D. will be built
【答案】D
【解析】句意：一些新的机场在我们国家西部将被建起来，去那儿将会非常方便。A. built 建造，用于一般现在时态 ，主语复数时，主动语态； B. will build建造，用于一般将来时态 ，主动语态； C. were built 被建造，用于一般过去时态 ，主语复数时，被动语态； D. will be built被建造，用于一般将来时态 ，被动语态； 根据Some new airports和build之间是被动关系，所以用被动语态；根据It will be very convenient to go there.可知用将来时态；故选D