--Our class won the English speaking contest.--Congratulations! You________ be very proud of it.A. can B. would C. must
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.
Boys, don’t stop-please _______ with your work.