56 [填空题,0.7分] Fill in the blanks with the appropriate form of the verb or verb phrase given:If it __________ (be not) for their support , we would be in a very difficult position.
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115[填空题,0.7分] Fill in the blanks with one of the i
115[填空题,0.7分] Fill in the blanks with one of the items given below :He has _____