You _________ to the meeting this afternoon if you have something important to do . 

 －_________ we go at 7.30 ? －What about __________ it a little earlier ?

-What’s your plan for the summer holidays?-I’ve no idea, but I’ ve decided _____ at home and have a good rest first. 

—I didn’t tell him the news.—Oh, you ought _______.

Please do not feed the fish; they ________ die if they eat too much.