he teacher told them since light ________ (travel) faster than sound,lightning ________ (appear) to go before thunder.
travels, appears
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This test ________ a number of multiple choice questions.
Howlong________they________(dig)theditch?
________(fail)severaltimes,theyneedsomeencouragement.
Herefusedtotelluswhetherhe________(undertake)thejob.
Matteristhename________(give)toeverythingwhichhasweightandoccupiesspace.