He had to pause from time to time to wipe the sweat from his forehead, because the air—conditioning system ______________.

I was blessed with a happy childhood, _____ that most people would want to have.

r disappointment, what she had devoted herself to ________ in nothing but failure

However, it only appears in the imagination and will never be __________

I don’t know if he_______ tomorrow. If he_______, I will call you.