还是英语!1,wehavefinishedofthework.wewillhavetofimishtherestbytomorrowA.threeB.twothirdsC.thirdseconds2,threefourthsofthesurfaceoftheearthwaterA.areB.wasC.is

Question

还是英语!
1,we have finished ___ of the work .we will have to fimish the rest by tomorrow
A. three B.two thirds C.third seconds
2,three fourths of the surface of the earth ____ water
A .are B.was C.is

Answer 1

1.B.two thirds = 2/3 （分数的分子用基数词,分母用序数词；当分子大于1时,分母用复数形式）
2.C.is （surface 为不可数名词,所以用单数）