— It seems that Mr. Wu is standing there.— It ______ be him because he called me from Canada just now.
It is ______ of a problem to be poor than to be dishonest.
The monkeys escaped ______ the zoo yesterday evening.
He doesn’t ______ to be a scientist.
I’d like to go with you, ______, my hands are full.
What do you think “anxious” ______?