–We should respect teachers because they ____ us with knowledge.
If you don’t know the words, you must ______in a dictionary.
—There was thick haze(雾霾)in our city this spring. What do you think of it?—I think __ cars we drive, __ pollution our city will have.
— ____ does he learn English? —He learns ____ watching English movies.
— Jim, remember to return this book by Friday.— ________.
— Excuse me, can I interview Mr White?— A moment, please. Let me check ________.