It is pretty well understood _____ controls the flow of carbon dioxide in and ou
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It is pretty well understood _____ controls the flow of carbon dioxide in and out the atmosphere today. |
[ ] |
A. that B. when C. what D. how |
答案
C |
举一反三
The mother didn"t know ______ to blame for the broken glass as it happened while she was out. |
[ ] |
A. who B. when C. how D. what |
We agreed to accept ______ they thought was the best tourist guide. |
[ ] |
A. whatever B. anyone C. whichever D. whoever |
_____ is known to us all is that the 2012 Olympic Games will take place in London. |
A. As B. What C. That D. It |
We agreed to accept ______ they thought was the best professor in the college. |
A. whatever B. whomever C. whichever D. whoever |
Meals in Spain are quite different from _____ they have in China. |
A. which B. what C. that D. whom |
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