Do you know the girl___in blue?

Do you know the girl___in blue?
-Yes,of course.She is my schoolmate from Shanghai.
A.wearing
B.putting on
C.dressed
D.looking
-I koncked into a tree when I went to the railway station for my freind.
-I suppose you___too fast.
A.drive
B.are driving
C.drove
D.were drving
这道题怎么确定时态?
-Where are you going for the summer vacation?
-I_____visiting Australia.But it costs too much money.I____.
A.consider;don't decide
B.am considering;haven'tdecided
C.am going to consider;won'tdecide
D.considered;didn't decide
三道题请说明原因