He is very good at carpentering, though ______.
Amy insists that she ____ the secret to lose weight. But she won’t share it with us.
We should make the world be aware of the fact that the land hunger ____ population growth before we carry out our population policy.
Sue had her luggage _________ an hour before her plane left.
My English name is Mary. Each of the students in our class _______ given an English name.
Doctors say that exercise is important for health, but it _______ be regular exercise.