1. I .... out but I didn't feel like it, so I stayed at home. A could go В could have goneC must have gone 2. I'm sorry I ............ come to your party last week. A couldn't comeB couldn't have comeC wasn't able to come 3. 'What do you think of my theory?’ ‘I‘m not sure. You......... right'.A could beB must beC might be 4. I couldn’t wait for you any longer. I ..............., and so I went. A must goB must have gone C had to go 5. 'Do you know where Sarah is?‘ 'No. I suppose she.... skopping. A should have goneB may have goneC could have gone6. At first they didn’t believe me when I told them what had happened, but in the end I..................... them that l was telling the truth. A was able to convince B managed to convinceC could convince 7. I promised I'd call Cary this evening. I . .......A mustn't forgetB needn't forgetC don't have to forget 8. Why did you leave without me? Yor...... for me. A must have waited 8 had to wait C should have waited 9. Lisa called me and suggested........... lunch together. A we have B we should haveC to have 10. You look nice in that jacket, but you hardly ever wear it. ......... it more often.A You'd better wear B You should wearC You ought to wear 11. Shall I buy a car? What's your advice? What............... ? A will you doB would you do C shall you do