20. i want to have a short talk with you. could you please spare a few minutes ________? a. if possible b. if necessary c. if important d. if worthwhile 22. the browns held _____ they called "family day" once each year. a. that b. what c. which d. when 23.in some parts of london, missing a bus means __________ for another hour. a. waiting b. to wait c. wait d. to be waiting 24.the foreign minister said, “_______our hope that the two sides will work towards peace.” a. this is b. there is c. that is d. it is 25. the book _____ he bought yesterday is very interesting. a. \ b. why c. when d. what
