<em>1. You must give up smoking</em> <em>2. A party was awesome. You should have come.</em> <em>3. You can solve this problem</em> <em>4. I had to do that</em> <em>5. I don't know why we were in a hurry. We shouldn't (needn't/mustn't) have rushed.</em> <em>6. I would like to go with you</em> <em>7. You can do everything you want</em> <em>8. Olga must</em><span><em>(</em></span><em>has to) pay more attention to English language lessons</em> <em>9. I am not sure, but he can be wrong</em> <em>10. I can count till 50 in Spanish</em>