During the last three decades, the number of people participating in physical fitness programs ________ sharply.
--How do you like the necklace?—Oh, perfect! It’s the ____ thing I’m after.
I ___ my son ___ a doctor, but he wasn’t good enough at science.
--Who won the __ race? --Liu Mei did.And I won the ___.
Where __ you __ the key? I ____ it yet.
--What’s wrong with you? ---____.