Withlasersscientistscanprobemanyphysicalprocesses,suchascombustion,oncebeyondourken.视野
Howmany_____(hour)arethereinaday?
两人进行踢毽子比赛，用抛硬币的方法来决定谁先踢是公平的。()
Parisisthecapitalof__________
--Shemustbeinred.
No,_____.Shewearsagreencoat.
()Iwouldlike________.
