题目内容
The government made a p__________ to bring down interest rates.（保证）
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Rain begins to fall and the peach trees b______________.（开花）
I had to r______________ myself from saying something rude.（克制）
She felt emotionally d_____________ after her divorce.（使筋疲力尽；使疲劳）
II. Fill in the blanks with correct prepositions or conjunctions.1. Are the doctors able to track ________ the cause of the infection?
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