b. I've never been to Siberia before
c. What is it that you do, exactly?
d. Karen used ot have short hair.
e. I'm just about to leave so I can't talk now.
f. I've not been to the theater for a while.
g. When did the Romans invade Britain?
h. I don't believe it will rain tomorrow.
i. Does this suitcase belong to you?
j. When I've saved enough money, I'm going to buy a new computer.
