The officials said the downward trend of A/H1N1 flu activity did not______ mean the worst was over. Flu activity might pick up next year.

Sally is the girl _____ I think is likely to win the first prize in the competition.

______sweater is this–I think it’s Mark’s.

it’s a challenging job, he did itittook me．

Is there any possibility ________ wecan get a ticket for The 2010 Shanghai World Expo — Of course, yes.You can either go to the Expo in person or buy ________ through the Internet.