I would have come to see you earlier, but I__________too busy.
Only ________ we will invite.
–My uncle will be here to attend a meeting tomorrow. --Oh, I though that he____ today.
______ number of people who use English as ______ second language is increasing in China.
This is such a letter ____came last night.
After work I went to the box office to buy the tickets for Kungfu Panda 2, only to be told there was ______ left.