I am sending these postcards ____ Canada.A. in B. on C. to
( )—________ did you go last Sunday? —I went to the Summer Palace with my family.
( ) —________ do you like pandas? —Because they’re cute.
( )—________ is your sister’s coat? —Red.
( ) I can see ________ the duck.
( ) ________ are all good students in schools.