I have heard these sons and daughters say they never fully appreciated their parents _____ it was too late to tell them.
A. as
B. that
C. until
D. when
参考答案:
It was dark and I________that woman___________ my mother,for..
It was dark and I________that woman___________ my mother,for they have the same hairstyle.[ ]A. mistook ; asB. mistook ; forC. took ; asD. took; for