Unless ___ to speak,you should remain silent at the conference.
The two boys share the same hobbies but they are quite different _______ personality.
It won’t be a very long time _________ he is in business for himself.
No regular advertiser dare produce anything that fails to stick to the _______ of his advertisement.
In face of failure, it’s the most important to _______ a positive state of mind.
— Should I talk in English or French? — Do as you _________ . We understand both.