单选题 What __________ employees to do their jobs well? Competition with coworkers, for some.?,。
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单选题 The robber reached out() and __________ the back pocket of my trousers for anything valuable.
单选题 As evidence began to accumulate, experts __________ investigate.
单选题 The newspaper article caused the actor considerable __________.
单选题 She saw that there was indeed a man immediately behind her.。 __________, he was observing her strangely.
单选题 Unfortunately, also like her mother, she developed()blood cancer because of __________ to radiation.
单选题
I __________ an old friend yesterday. It brought back memories.
。
单选题 The twins were so much alike that it was impossible to __________ one from the other.
单选题 Some creams we tested failed to give __________ protection against… UV light.