I didn’t bring my homework, I ______ it at home. A.forgot B.forget C.left
-Look, your sister is playing the piano over there. -She ______ be my sister. She has gone to America.
It is polite ______ you to give seats to the elderly.
-Why are there a lot of dead fish in the river? -Because they were ______ by the polluted water.
- Thank you so much for the gift. -_______.
_______ points you get, _______ levels you’ll go to.