______ can help us learn ______ about the world.
Let’s go to Maxwell to buy the fruit because the price there is quite _____. We can pay less.
-Is that your bike, in front of the black one? -No. It’s ______.
Ben needs a new jacket to keep ________the cold.
Most of _______ads don’t tell you anything real.
--- That T-shirt with Yao Ming’s picture on it ________ belong to David. He admires him a lot. ---No, it ________ be his. He hates black color.