‘WHY IS THE GROUND SO WET

99. - cau-trac-nghiem-ngu-phap-va-tu-vung-tieng-anh
Tiếng Anh cau-trac-nghiem-ngu-phap-va-tu-vung-tieng-anh
99. ‘why is the ground so wet?’ – ‘ It …………..last night’.a. would rain b. would have rainedc. should have rained d. must have rained