从Ａ、Ｂ、Ｃ、Ｄ四个选项中，选出可以填入空白处的最佳选项
1. －I’ve given up smoking already, darling.
－You should have taken the doctor’s advice years ago._______, anyway.
A. Better late than never B. It’s easier said than done
C. No pains, no gains D. Well begun is half done
2.—Mary works hard at English. —_______ and_______.
A．So does she; so you do B．So she will; so do you
C．So you do; so does she D．So she does; so do you
3. I don’t think math ______.
A. easily to be learned. B. easily to learn
C. easy to be learned D. easy to learn
