--Would you please explain to me about the difference between the two phenomenon?
--I’m sorry, but that’s just _____ I’m puzzled about.
| A．why | B．what | C．which | D．where |
相关试题
33. —Pick, I did very well in the maths exam last week.
—Congratulations, Jim! And I did _____. I got a full mark and 20 extra points.
no better B. not better C. no worse D. even worse
32. The college education system should be reformed ______ it can follow the pace of the
economic development. 
| A．so long as | B．so that | C．only if | D．even though |
31. Researchers now have some proofs ______ reading the Roman alphabets and Chinese
characters uses different parts of brain.
where B. when C. which D. that
30. He _____ his potential had it not been for his desire to meet new challenges.
| A．would never have realized | B．would never realize |
| C．never realized | D．had never realized |
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