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serious problem the more serious problems most serious problems the most serious problems
additions compensations patches complements
patches compensations complements additions
improper adjustments contaminated fuel kinked fuel lines excessive engine vibration
work program communicate talk
patches compensations complements additions
remaining remained have remained having remained
additions compensations patches complements
Its population was doubled. It was twice destroyed by natural disasters and was twice rebuilt. Serious social problems emerged (出现). It was ruined by an earthquake and a war, but was twice rebuilt.
What are the major problems in your baggage? What are the major articles in you rbaggage? Whatare the minor articles in your baggage? What are the articles in your baggage?
frequently usually commonly rarely
One of the biggest Of the biggest one The biggest one There are the biggest
remaining ; predicting remaining ; to predict remained ; predicting remained ; to predict
economy the growth of poverty in cities education health care
incorrect replacement of barrels and plungers of jerk pumps overheating of the nozzle orifices cracked pump housings dirt in the fuel
somehow somewhat anyhow meanwhile