When they entered the area, the visitors (require)________to turn off their smar

游客2023-09-20 45

问题 When they entered the area, the visitors (require)________to turn off their smartphones.

选项

答案 were required

解析考查时态和语态。空格应为谓语动词，首先考虑时态，跟从句保持一致，所以用一般过去时，再判断主语visitors和require之间是被动关系，又是复数，故将require变为were required。

转载请注明原文地址:https://tihaiku.com/zcyy/3029510.html

相关试题推荐

随机试题

最新回复(0)

Thispartistotestyourabilitytodopracticalwriting.Youarerequiredtow