Not until all the fish died in the river, ____ how serious the pollution was.
Thomas wants to know ______Nina lives.
Mr. Smith couldn’t open the door because his naughty boy _______ it from the inside
.When you don’t know a word, you can _________ in the dictionary.
My mother isEnglish teacher in No. 2 Middle School.
-Jack, how can I turn on this ipod? -__________.