-- It’s a pity that you missed the lecture on nuclear pollution. -- I _________ it, but I was busy preparing for a job interview.
How long has your brother ___ the army?
This is the only foreign film ___ I have seen this month.
His mother was born in Greece, and Greek was her native language, ___.
While reading, you’d better make a mark ___ you have any questions.
Don’t keep your mouth ___ if you want to improve your spoken English.