John and I _____ friends for eight years. We first got to know each other at a Christmas party. But we _____ each other a couple of times before that.
My friend Martin was very sick with a strange fever, _____ he could neither eat nor sleep.
The policeman came up to the lonely house with the door ______ ,_____ there for a while and then entered it.
Rosita is said _____ in Japan, but I don’t know what city she studied in.
She will get a divorce from her husband unless _______.
It is the test system, _____ the teachers, that is to blame for the heavy burden of middle school students nowadays.