IX. Put the verbs in brackets into the correct form to complete the sentences. (1 point)
37. If the local people drink the contaminated water, they (have) ____ health problems.
38. If there were more trees in this area, the air (be) ____ fresher.
39. All the aquatic animals (die) ____ if people don't stop dumping sewage into the lake.
40. Global warming (not happen) ____ if there weren't too much carbon dioxide in the atmosphere.
Loga
Sinh Học lớp 12
