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described am describing describe was describing
shaking shake to shake shook
had had；had happened were having；happened had；was happening would have；happened
was playing is playing are playing were playing
did the earthquake happen the earthquake happened was the earthquake happened the earthquake was happened
to be working to work working worked
on, in at, on at, in on, on
were sleeping is sleeping was sleeping are sleeping
extraordinary something something extraordinary anything extraordinary extraordinary anything
had would have were having are having
was watching watch am watching were watching
chance surprise hope escape
While; were sleeping When; slept While; slept When; were sleeping
was looking through looked through h
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