Although the police thought he was the most likely one, _____ they had no exact proof about it, they could not arrest him.
These suggestions are perfectly in _____ tune with our thoughts on ______ subject.
When first____ to the market, these products enjoyed great success.
That art center is _______ used to be a factory, ______ millions of tractors were produced.
--- Have you finished the report? --- No. I ______ it all this week.
Last week, only two people came to look at the house, ____ planning to buy it.