题目
题型:0113 期中题难度:来源:
A. had decreased
B. decreased
C. has been decreasing
D. is decreasing
答案
核心考点
试题【Over the past decades, sea ice _____ in the Arctic as a result of global warming】;主要考察你对过去将来完成时等知识点的理解。[详细]
举一反三
— I think so. She _____ for it for months.
A. is preparing
B. was preparing
C. had been preparing
D. has been preparing
— Well, it isn"t surprising. Our friend and relatives _____ around all the time.
A. are coming
B. had come
C. were coming
D. have been coming
A. shoulders
B. shouldered
C. is shouldering
D. has been shouldering
A. are working
B. have been working
C. worked
D. had worked
A. have been coughing
B. had coughed
C. coughed
D. cough
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