3. To write a novel is not as easy as you imagine. It will take a lot of time and_____.
Does _______ matter if he can’t finish the job on time?
I don’t think _______ possible to master a foreign language without much memory work.
Therearetworoadsandeither ________tothestation.
Whenandwherethistookplace_________stillunknown.
Ourfamily____ahappyone.