In 1900, the energy derived from burning petroleum was only four percent ______ of coal.
A
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Whenyoufallinloveforthefirsttime,it’ssurprising______inconveniencesyoucanputupwith.
Theproposaldeservessupportasitgives______totheneedsofchildren.
Onarrivinghome,theboytoldhisparentsaboutallthe______whichoccurredinhisdormitory.