.--- I will attend your lecture at 10:00 tomorrow. --- I am sorry, by then my lecture will have ended and I ______ my guests in my office.
We prefer______ alone rather than__________.
The collected money should be made good use __________the people who suffered a lot in the earthquake.
Each girl present at the party was wearing a flower in the hair, which______ their beauty.
He asked me_____ with me.
This is the biggest lab_____ we have ever built in our university.