If Newton lived today,he would be surprise by what ___ in science and technIfNewton lived today,he would be surprise by what ____ in science andtechnology.A.had discovered B.had been discoveredC.has discovered D.has been discovered选哪个,用什么时态,为什么,
问题描述：
If Newton lived today,he would be surprise by what ___ in science and techn
If
Newton lived today,he would be surprise by what ____ in science and
technology.
A.had discovered B.had been discovered
C.has discovered D.has been discovered
选哪个,用什么时态,为什么,
答
B。 科学技术是已经被发现，所以只能是B D 完成被动，尤其是宾语从句前面是过去时后面只能过去完成时，就是B
答
选D,如果牛顿还活着,他会对现如今科学和技术上的发现感到惊讶.what指代的是science and technology,作主语是用单数,并且说的是现如今,所以选has,discover的主语是物是用被动,被发现,所以选D不选C,不懂了还可以问我,希望能帮到你