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16.Which verb is progressive? A. must give B. is giving C. has given D. will have given 17.Which verb is progressive? A. does wear B. will wear C. had been wearing D. wears 18.Which verb is progressive? A. can fly B. were flying C. fly D. had flown 19.Which verb best completes this sentence? At the same time, the twins __________ into the pool off separate diving boards. A. are diving B. have dived C. dove <-<-<-<- D. dives