________ was known to them that the boss had broken his promise ________ he would give them a rise.
The work he devoted his time to _____ worth praising.
The theory he sticks to ______ to be of no use in our studies.
The man you referred to _____ just now.
How happy we are! The holiday we have been looking forward _______ at last.
You can never imagine what great difficulty I had ______ your house all by myself.