I like your new leather boots!—Thanks．I had to try on almost a dozen pairs ______ I decided to get them．

Who is the woman ________ a red sweater? —She’s my sister. [ ]

There are so many kinds of Mp4 in the shop. We can’t decide .

You should help the person who is ______. [ ]

They were all very tired, but ________ of them would stop to take a rest.