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:中等
  • 人气:1083

I am so busy that I have __________ unanswered letters.

A.many a B.a large amount of
C.masses of D.a great deal of
登录免费查看答案和解析

IamsobusythatIhaveunansweredle