Feathers fall to the ground slowly, ________ stones fall much faster.
SomeofthestudentshadlearnedenoughEnglishto_________aconversationwithanativespeakerofEnglish.
Itwasgettingdark.Wedecidedto________forthenightatafarmhouse.
HowIwishIcould________myideasinsimpleandwonderfulEnglishchattingontheInternet.
Thephotographerneedstochargeupthedigitalcameraeverydayasthebattery________quickly.
Ifyoulackexperience,youcan_______itthroughpractice.