.Sheep on a remote Scottish island are gradually shrinking _______ global warming, according to a study published in the journal Science.
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.
The TV play series The Revolution of 1911, broadcast on CCTV1 lately, is ________ the 100th anniversary of The Revolution of 1911.