We didn't ...buy biscuits decause granny had baked a tasty pie
a)have to
b)could
c)can
On Thursday she ...at half past six
a)gets up
b)got
c)get up
They.........home late at night, tired but happy
a)return
b)returned
c)have returned

We didn't can buy biscuits decause granny had baked a tasty pie (c)On Thursday she gets up at half past six (a) мог ошибатьсяThey return home late at night, tired but (a)