MCQOPTIONS
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| 1. |
Directions: Each of the following items in this section has a sentence with a missing preposition. Select the correct preposition from the given options and mark your response accordingly.Simulations of the 20th century by climate models that exclude the observed increase _______ greenhouse gases fail to simulate the increase in temperature over the second half of the 20th century. |
| A. | of |
| B. | in |
| C. | by |
| D. | to |
| Answer» C. by | |