Bob never does his homework ___ Mary.He makes lots of mistakes.

Bob never does his homework ___ Mary.He makes lots of mistakes.
A.so careful as B.as carefully as
C.carefully as D.as careful as
I like buying food in the supermarket because it offers the ___ at the ___ price.
A.less; least B.most; best
C.best; most D.most; most
It was the third time he ______late for school
A.was B.has been C.had been
The teather told me that the students I wanted to see were seen_______football on the playground just now.
A.playing B.to be playing C.play D.to play （重点）
可是我认为1选C
而切好像4的答案是A