The two pencil boxes are the . They are .
— What______useful dictionary for beginners of English! Where did you get it? — I bought it in the bookshop.
— I visited the Purple Mountain Observatory last Sunday. —Why didn’t you tell me earlier?
There’s milk in the fridge. Let’s go to buy some .
Is the computer ? We don’t have to buy it .
—Excuse me! You can’t take photos here.Look at the sign. It says “NO PHOTOS”. — Sorry,I _________ see it and I _______ do it.