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