Only recently______to realize the dangers caffeine(咖啡因)might bring to our health.

admin2014-09-24  41

问题 Only recently______to realize the dangers caffeine(咖啡因)might bring to our health.

选项 A、that scientists began
B、have scientists begun
C、scientists have begun
D、that did scientists begin

答案B

解析 本题考查倒装结构,only放在句首要求主谓倒装。题意为,只是最近科学家们才开始认识到咖啡因可能带给我们的危害。
转载请注明原文地址:https://jikaoti.com/ti/yGIYFFFM
0

最新回复(0)