I had been puzzled over the problem for over an hour without any result, ____ all at once the solution flashed across my mind.
A. while B. when C. then D. as
On the third floor there are two rooms, ____ is used as a meeting-room.
A. one of them B. the larger of which
C. and a larger of them D. the largest one of which
---Does ____ of the two foreigners work in Chengdu?
---Yes.____ of them have been working here as English teachers for three years now.
A. any; Both B. either; All C. either; Both D. both, Both
Bill, often regarded as one of the best students in his class, ____ to be the student who cheated in the exam.
A. came out B. let out C. sent out D. turned out
This pair of shoes doesn't look good, but that pair is ____ better, I think.
A. rather B. less C. even D. hardly
I wonder what it feels like to be one of ____ really rich. The Browns already have Rolls Royce and now they are buying ____ third.
A. the; the B.不填; a C. the; a D.不填; the
