Activities of the Science Festival _____ model planes and model rockets are flown over the school grounds include the Inventions Show and the Essay Competition.
A.when | B.which |
C.whose | D.where |
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Activities of the Science Festival _____ model planes and model rockets are flown over the school grounds include the Inventions Show and the Essay Competition.
A.when | B.which |
C.whose | D.where |