Choose the correct word or phrase underlined in each sentence. 1. that can't be right! (i don't believe / i’m not believing it! 2. carol can't swim today. she has/is having a cold. 3. see you in the morning. i leave/i'm leaving now. 4.what do you do/are you doing? if you drop it, it will explode! 5. stop doing that, billy! you are /you are being very silly. 6. i drive/i'm driving! you can sit in the back with martin. 7. what do we eat/are we eating this evening? i'm really hungry! 8. you're a great cook! this cake tastes/is tasting wonderful. 9. where do you go/are you going? i haven't finished speaking to you! 10. chemistry is hard. i am not understanding/i don't understand it.