21. by far, there are many problems ________ to be solved. a. remaining b. remained c. being remained d. to remain 22. he put a cover on his car to keep it ______dirt. a free from b. far from c. apart from d. away from 23. —do you know the tall man ______ to mr king over there? —sorry, i don’t know him. a. to speak b. speaking c. is speaking d. has spoken 24. she told me that she was not _______ with my examination results. a. inspired b. surprised c. satisfied d. excited 25. if i ruled the world, i would _______ the world ______ everything that is bad. a. get rid of; by b. be rid of; by c. rid; of d. get rid; of 26. the experts advise _______ our army _______ modern weapons. a. to equip; with b. equipping; with c. to equip; for d. equipping; for 27．—mr black，what about my application? —oh，i regret________you that it hasn’t been successful. a．telling b．to tell c．having told d．said
