At the awarding ceremony held in Tokyo, the scientists were surprised by what ______ in science and technology.

题型：单选题题类：常考题难易度：普通

牛津译林版高中英语高三上册模块9 Unit 2 Witnessing time 同步练习

A、has discovered B、has been discovered C、had discovered D、had been discovered

举一反三

As a matter of fact, Tom {#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} {#blank#}4{#/blank#} money by the end of last week.

—I{#blank#}1{#/blank#}（hope） to go to Tibet, but I didn't sign up for the tour in time.

相关试卷