--- What date is it?  --- It’s _____.

 It has something to do with the part electricity ______ in our life.

 —Will a cell _______? —I’m afraid not. Only a computer can be used to run this software. 

 On hearing the news of the accident in the coal mine，she ________ pale.

Due to the policy of free highway fees on major holidays, too many passenger cars are trapped on the highways, causing heavy traffic jams, some even _______ for several hours.