优题课 - 聚名师,上好课(www.youtike.com)
  首页 / 试题 / 高中英语 / 试题详细
  • 科目:英语
  • 题型:单选题
  • 难度:较易
  • 人气:1538

An exercise method _____ to improve strength and balance is becoming popular  in the United States.

A.designing B.designed
C.to be designed D.being designed
登录免费查看答案和解析

Anexercisemethodtoimprovestren