______ is often the case, many Chinese parents save enough money for their children’s further education.
My uncle's house in the downtown area is much smaller than ours, but it is twice __________ expensive.
John found it a challenge to meet the needs of the boss. __________, he had no way to satisfy him.
What made me surprised was his attitude __________ the mistakes I had made.
What's your attitude __________ that problem?
—Mike, you don't seem to be quite __________ today. —Well, I hardly slept last night. I was preparing for a report.