___ of the books borrowed from the library ___ finished already. A.Two thirds;have been

___ of the books borrowed from the library ___ finished already.
A.Two thirds;have been
B.One thirds;has been
C.Two sevenths;have been
D.Three fifths;has been

Running in such bad weather ___ (not recommend) as it is so dangerous.

Three ___ is another way of saying three ___.(四分之三)

是多选题吗？AC都正确的...分数表达法 是 数字（分子）+ 序数词（分母），如果分子大于1的话，分母的序数词需要用复数。例如 三分之二是two thirds, 四分之三是 three fourths。由于主语的书是复数，所以谓语动词用复数。

填 is recommended

填 quarter, three fourths

虽然我很聪明，但这么说真的难到我了