1．________our earth，or else it will be no longer fit for us to live on. a．protected b．to protect c．protecting d．protect 2．—what happened? —oh，a bee appeared on kate’s dress，and her sudden________ of cry scared us. a．break b．burst c．attitude d．express 3．—what happened to the priceless works of art? —________. a．they were destroyed in the earthquake b．the earthquake was destroying them c．they destroyed in the earthquake d．the earthquake were to destroy them 4．________ deep down in the earth，the dead forests rotted away and became coal. a．burying b．buried c．to bury d．having buried 5．our government are taking firm measures to make pollution________. a．to the end b．put to an end c．in the end d．without end
