.Rainforests __and burned at such a speed that they will disappear from the earth in the future.
---Let me help you cross the street. --- ________ ! I’m not that old.
They have held several meetings to _____ next year's production plans.
Once new difficulties _________ in your work, it’s always important to use your brains.
When the peace talk failed.There was a fear that war may ____________ at anytime.
_________ seems no sense in complaining.We should take action now.