Sometimes we can see more than 60 students are ________ in a small school bus, which can easily cause traffic accidents.
I don’t think _______ possible to master a foreign language without much memory work.
Therearetworoadsandeither ________tothestation.
Whenandwherethistookplace_________stillunknown.
Ourfamily____ahappyone.
Morethanoneanswer _______tothequestion.