I believe that there will be _____ pollution and _____ trees.A. fewer; more B. less; more C. fewer; fewer
—Who taught ________ to write the computer programs? —Nobody. She learned it by __________.
Last month I travelled across the Sahara Desert by camel with some locals. What amazing experience!
— Shall I buy this comic book for Dick?— . He might already have it.
—Why did Miss Wang look so worried when we saw her?—Because she wondered .
My uncle knew little about the famous film Queen he saw it yesterday evening.