1) The heavy rainfall ___ severe flooding throughout the region a) result in b) caused by  c) resulted in d) cause 2) Poor time management can ___ lower performance. a) have the result  b) result in c) resulted in d) cause 3) Your efforts will ___ if you remain focused. a) caused by  b) have a result c) affect d) affects 4) The experiment didn’t ___ the researchers expected. a) affects b) lead c) as a result of 1 d) have the result  5) Climate change ___ ecosystems all over the world. a) result in b) affects c) as a result of d) resulted in 6) Lack of sleep can ___your ability to concentrate a) led b) affect c) have the result  d) have a result 7) Smoking is known to ___ serious health problems. a) cause b) led c) affects d) as a result of 8) The delay was ___ a technical issue. a) as a result of b) led c) affects d) caused by  9) ___ the strike, all flights were cancelled. a) have a result b) lead c) cause d) as a result of 10) The company’s reputation improved ____ of its initiatives. a) affects b) caused by  c) because to d) as a result of 11) Excessive stress can ___to mental and physical health issues. a) affects b) as a result of c) lead d) have a result 12) His hard work ___to a well-deserved promotion. a) led b) as a result of c) affect d) caused by 

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