16. Yesterday morning I got up and looked out of the window. The sun was shinning but the ground was very wet. It________

a. rained b. has been raining c. had rained d. had been raining

17. We ________ our examination next month.

a. have b. shall have c. will have had d. will be having

18. Look that those black clouds! It________

a. is going to rain b. will rain c. would rain d. can rain

19. We________ English this time next Monday.

a. learn b. will learn c. are learning d. will be learning

20. We________ this course before the final examination.

a. are going to finish b. have finished c. will finish d. will have finished