If nobody breaks traffic rules and everyone is careful enough, most accidents can be .

_____ English classes do you have every week?—Five.[ ]

I know by what time you want the project to be done?—By the day after tomorrow.you finish it on time?

Which of these two sweaters will you take?–I’ll take . They look nearly the same, and I just need one.

Don’tletthesadnessofyourpastandthefearofyourfuture ___thehappinessofyour present.