Many buildings _____________ _____________ _____________in the past few years.
【回答】
have been built
【解析】最近幾年: in the past few years;根據時間可知句子的時態使用現在完成時,主語Many buildings是複數形式,根據英文提示可知此句被動語態,被動語態構成:主語+have/has+過去分詞;結合漢語提示可知*是(1). have (2). been (3). built 。