Even if you are an experienced teacher, you sometimes ______ make some mistakes.
Many of them turned a deaf ear to his ad-vice,_________ they knew it to be valuable.
They had no great belief _________ Chinese medicine.
Although _________my opinion, the old professor didn't come up with his own.
In order not to let the others hear what he said, he_________the news to me.
The lady walked around the shops,_________an eye out for bargains.