In1900,theenergyderivedfromburningpetroleumwasonlyfourpercent______ofcoal.
A
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Hecomplainedtothebooksellerthattherewereseveralpages______inthebook.
We hoped to be able to move into our new house at the end of the month, but things didn ’t ______ as we expected.
Homing pigeon is useful as a ______ carrier because when taken from home, it will return atthe first opportunity.
When you fall in love for the first time, it ’s surprising ______inconveniences you can put upwith.