—Must we clean the room now?—________. A.No, you mustn’t B.No, you needn’t C.Yes, you need
Many trees ________ two years ago.
– Will you help me make a shopping list(购物清单)? -- .
The desk is made ______ wood.
______ far as I know, her mother is a very famous writer.
He _____ go out with his parents, but now he ______ staying at home alone.