We’ll never give up _______ they may do or say .
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.
Bob looked back only to find an old classmate whose name ________ him for the moment.