i'm made to study hard by my parent
unless you study hard now, you will be sorry some day
if i knew a party last night, i would come
if Tom took any exercise, he wouldn't be fat
the couple ,whose apartment was burglarized, bought new locks
the woman whose purse was stolen shouted "stop..."
the building where my grandpa is living is very old
my daughter asked me a question which i couldn't answer
the policeman who gave me the direction to your house was friendly
unless it snow, i couldn't go out with you
1: are waiting
2: is working
3:had written
4:sit
5:are
6:working
7: writting/listening
8: am going to take
9:finishes
10:left/ have heard
11:ran
12:were talking
13:smoking