Englisch , fehlende Wörter in Sätzen

könnt ihr mir sagen ob a,b oder c zu den jeweiligen sätzen passen

1)We ...
to the doctor´s yesterda?
a) have been b)were c)went


2)My mother ...TV when suddenly there was a loud crash.
a)is watching b) watches c) was watching


3)She asked you about it, ...?
a)does she b)doesn´t she c)didn´t she?


4When did you.. this car?
a)bought b)buy c)will buy


5)Ann said she... send a mail when she got home.
a)is b)wants to c)would


6)Jane always leaves... 7.15 in the morning.
a)at b)in c)on