It suddenly        to the teacher that he hadn’t left any assignments(作业) to his students.
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A
happened
B
occurred
C
thought
D
took place
推荐题目
 Vincent van Gogh’s paintings were at last _____ as works of genius.
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A
practiced
B
recognized
C
realized
D
promised
Lan Lan _______her pace of walking home fearing that it was going to rain.
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A
accelerated
B
slowed
C
stopped
D
returned