共50条信息
Only after I had known him for some time to appreciate his real worth.
A. do I begin B. did I begin
C. I began D. had I begun
Is it the burning of more fossil fuels ______ is resulting in this increase in carbon dioxide ?
A. as B. which C. what D. that
It even leaves the scientists in wonder _____ they should call the newly-born
creature, which looks half-human and half-animal.
A. that B. why C. what D. how
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