Someone is ringing the doorbell. Go and see ＿＿＿＿＿＿. 

----Who taught you Japanese?  ---- Nobody, I learned it by______.

________ matters much ________ our headmaster supports our plan.

Work hard and try to make what the teachers teach ________in class.

—Was the test you took yesterday easy?—          but easy, but I did my best.