You can have your book back now. I ________ it. A. have been reading B. have read C. had read D. am reading
B. have read
How many times ________ you ________ that international conference? A. are – attending B. do – attend C. have – been attending D. have –attended
D. have –attended
I ________ for my math textbook all day, but I ________ it yet.A. have been looking/ haven’t found B. have looked/ haven’t found C. have been looking/ haven’t been finding D. have looked/ haven’t been finding
A. have been looking/ haven’t found