We may find that learning a foreign language does not have to be________learning our mother tongue,but can in fact be twice ________.
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.
My classmate, Li Ming, was highly praised for ___ a good deed.