, we lack practice and experience nowadays in dealing with the complicated economic situation.
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? ---____.
--What are you busy doing these days? ---___ the college entrance examinations.