17. The doctor made the patient... the medicine and persuaded him to keep the bed. A to take B take C took D taking 18. I ... fifty driving less

17. The doctor made the patient... the medicine and persuaded him to keep the bed. A to take B take C took D taking 18. I ... fifty driving lessons but I still cannot drive. A have had B was having C will have D had had 19.Heis free now. He... at the moment. A is having his window painted B is having his windows painting c has had his windows painted D has his windows painted 20. He said he ... interested in mathematics since he went to school. A has been B is been C was D had been 21.I'm afraid I ... to meet my friend at the airport next Sunday. A can't B am able C am not able D won't be able 22. Look at all those stars. ...is ...? A Which, more near B What, more near C What one, the nearest D Which one, the nearest 23. Be ... at the lessons, please. A more active B more actively C activer D little less active