She doesn't know how to do this ____A.tooB.alsoC.eitherD.neither

问题描述:

She doesn't know how to do this ____
A.too
B.also
C.either
D.neither

C.either 否定句用either,肯定句用too,also

C 表示两者都不.

C.either

neither 否定用NEITHER 肯定用EITHER 或 too或 also

C:either 放于句尾时,肯定句中用 too; 否定句中用 eitherneither只用于句首或句中,不会出现在句末的.例:It is neither hot nor cold in winter here.这里冬天既不热也不冷.Neither of my sisters drinks coffee....