Going to America for further study is a good chance , ____ I have been looking forward to .
Weare watching TV ______ we caught sight of a friend of ours .
The price of diamond rings has risen sharply _______ the price of gold rings has gone down.
It is a long time since I last saw you . This sentence means _______
_______ reason you may give , you ought not to have left homework unfinished.
It seemed only several minutes _______ he finished this painting .