21. I would love ___ to the party last night but I had to work extra hours to finish a report.

A. to go      B. to have gone      C. going      D. having done

22. There is a mountain ___ the top is always covered with snow.

A. of that          B. of which        C. its        D. that

23. If you act like that, you’ll get yourself ___.

A. dislike          B. disliked         C. disliking  D. to dislike

24. The meeting was over, but the problem ___ unsolved.

A. kept          B. left                     C. continued  D. remained

25. They will never give in _______ they might do or say about the plan.

A. although        B. no matter how    C. whatever        D. how