全国卷3的英语几道高考题,"Life is like walking in the snow ,"Granny used

全国卷3的英语几道高考题,
"Life is like walking in the snow ,"Granny used to say ,"because every step______"
A`has shown
B`is showing
C`shows
D`showed
为什么要选C而不是选D,请详解
2、The result is not very important to us ,but if we do win ,then so much _____
A`the best
B`best
C`better
D`the better
为什么要D,而不选A