The researchon the new flu virus vaccine is challenging and demanding Who do you think cando the job —______ mystudents have a try

．Nowadays meteorologists can make good forecast for 3 or 5 days ．Perhaps soon they may be able to do that for a week or ____．

I still remember the days___ I spent ______with you in Beijing．

(2014·厦门高三质检)The worker earned little money a month，so he had to________only fast noodles.

Why __________ put the meat in the fridge ? It’ll stay fresh for several days