Очень нужна помощьНадо записать выделенные слова в правильной форме

B. I have never been to Siberia before.
c. What do you do at work exactly?
d. Karen used to have short hair once.
e. I'm just about to leave, so I can't talk now.
f. It has been a long time for me since I last went to the theatre.
g. When did Romans invade Britain?
h. I don't think it will rain tomorrow.
i. Does this suitcase belong to you?
j. When the necessary amount of money is saved, I'm going to buy a new computer.