Nowadays people are more concerned about the environment _______ they live.
A．what B．which C．when D．where
_______ which university to attend, the girl asked her teacher for advice.
A．Not knowing B．Knowing not C．Not known D．Known not
He is so busy. He cannot afford enough time with his son _______ he wants to.
A．even if B．as if C．because D．before
_______ you said at the meeting describes a bright future for the company.
A．When B．How C．What D．That
--Why are your eyes so red? You _______ have slept well last night.
A．can't B．mustn't C．needn't D．won't
---Yeah, I stayed up late writing a report.
Read this story, _______ you will realize that not everything can be bought with money.
A．or B．and C．but D．so
