Experts warn that global warming will cause climate changes, including more floods, heat waves and droughts.
A. frequent
B. usual
C. ordinary
D. mon
网友回答
(答案→)A. frequent
B. usual
C. ordinary
D. mon
解析：句意：专家警告说，全球变暖将导致气候变化，包括更加频繁的洪水，热浪和干旱。其余三个选项与“通常，普通，共同的”等意思有关。